World Heritage "Danger & Delisting" Lessons, Ranked
— Inscription Is No Permanent Guarantee

Findings Against the Conventional Wisdom

① The conventional wisdom says a Danger List listing is a mark of shame — on this axis, Angkor lands a close #2. Its severity score is low (3), but it's pushed up by a response & outcome score at the very top of the field — delisted just 12 years after being flagged, following international conservation support — and a high lesson-diffusion score (9). This ranking itself backs up the point: the Danger List can function as a support mechanism, not a punishment.
② Dresden Elbe Valley — delisted over bridge construction — lands as high as #7. This case, where a local referendum chose a bridge over World Heritage status, isn't treated here as a simple "foolish mistake"; it's the sharpest example in this piece of the structural tension between local livelihood needs and international heritage-protection demands.
③ The Arabian Oryx Sanctuary — the first-ever full delisting — sits at only #4. Its institutional-shock and lesson-diffusion scores are at the top of the field, but its outcome — delisting, the worst possible result — keeps it from reaching #1 overall.
④ Notre-Dame Cathedral sits at #17 despite a fire that made headlines worldwide. It was never placed on the Danger List, and it isn't even a standalone World Heritage Site to begin with — it's a component of the serial listing "Paris, Banks of the Seine."

How the Weights Reshape the Field (Sub-Views)

By Outcome Type (Delisted, Removed, Ongoing, Averted)

The overall Top 5 draws from all four outcome types, with no skew toward any single one. That Angkor — the top scorer among "delisted = success" cases — also sits at #2 across the whole ranking is the most direct rebuttal to the conventional wisdom that "a Danger List listing equals failure."

Caveats & Limitations

Related

Sources

1. The dates and venue of the 48th session of the World Heritage Committee (19–29 July 2026, Busan, South Korea) — UNESCO official site https://www.unesco.org/en/world-heritage/committee-2026 / Busan Metropolitan City official site (Japanese) https://www.busan.go.kr/jpn/bsnews01/1691037 / Note: this article originally described the session as "scheduled to be held," but as of this article's update (26 July 2026) the session is underway, so this was corrected to "in session"
2. Deliberations on "Asuka-Fujiwara: Archaeological Sites of Japan's Ancient Capitals and Related Properties" — ICOMOS published a recommendation of "inscription" on 6 June 2026 (Kashihara City official site https://www.city.kashihara.nara.jp/soshiki/1020/gyomu/1/1/20524.html / the Asuka-Fujiwara World Heritage Registration Promotion Council https://asuka-fujiwara.jp/news/4607/ ). Note: this article originally described the site as "to be reviewed at the July session," but the 48th session decided on inscription on 26 July 2026 (multiple news outlets agree: Jiji Press https://www.jiji.com/jc/article?k=2026072600130&g=soc / Nikkei https://www.nikkei.com/article/DGXZQOUD080F70Y6A700C2000000/ ). The text of the Committee's decision could not be reached, as whc.unesco.org returned 403 from this environment
3. The resubmission of Hikone Castle's draft nomination and the collapse of part of its stone wall (two separate events) — the submission of the draft nomination (World Heritage preliminary assessment application) is confirmed by the Agency for Cultural Affairs' press release https://www.bunka.go.jp/koho_hodo_oshirase/hodohappyo/93938701.html (25 May 2026) / the wall collapse was reported from a Hikone City announcement: part of the suimon stone wall on the west side of the National Treasure keep (6.5 m wide × 2.7 m deep × 2.5 m high) is said to have collapsed due to heavy rain (announced 28 June 2026; NHK https://news.web.nhk/newsweb/na/na-k10015163041000 / Kyoto Shimbun https://www.kyoto-np.co.jp/articles/-/1741393 ). The original text of Hikone City's announcement was not reached
4. The number of sites on the List of World Heritage in Danger (53 as of July 2025) — this is the count as of the close of the 47th session of the World Heritage Committee in July 2025. Note: the count is changing during the ongoing 48th session, with the addition of Tyre, Lebanon, being reported (CGTN https://news.cgtn.com/news/2026-07-21/Graphics-UNESCO-meets-as-53-World-Heritage-sites-remain-endangered-1OXC0kNFG0g/share_amp.html / Arab News Japan edition https://www.arabnews.jp/article/middle-east/article_182512/ ). No source giving the confirmed total after the session's close was reached, so this article treats the figure explicitly as "as of July 2025"
5. The 2001 destruction of the Buddha statues — that they were dynamited by the then-ruling regime was widely reported internationally. UNESCO World Heritage Centre's threats page for the property https://whc.unesco.org/en/list/208/threats / Note: whc.unesco.org returned 403 from this environment, so confirmation was limited to the title and summary in search results (the primary source's text was not reached)
6. That inscription and listing as in danger took place simultaneously in 2003 — a decision of the 27th session of the World Heritage Committee (2003). UNESCO World Heritage Centre https://whc.unesco.org/en/news/719 / Note: as above, the text was not reached
7. That expert opinion is divided on whether to rebuild the Buddha statues and that no rebuilding has taken place — no primary source showing the distribution of this debate was reached
8. Listing as in danger simultaneously with inscription in 1992 (listed on 14 December 1992) — UNESCO World Heritage Centre's page for the property https://whc.unesco.org/en/list/668/ / Note: the text was not reached (403)
9. Conservation support under the International Coordinating Committee for the Safeguarding and Development of the Historic Site of Angkor (ICC-Angkor) — no primary source showing the framework of this support was reached
10. Removal from the Danger List in 2004 — a decision of that year's session of the World Heritage Committee. That 12 years elapsed between inscription and removal can be calculated as the difference from the inscription year (1992)
11. That all six of Syria's World Heritage properties were listed as in danger together in June 2013 — UNESCO official site https://www.unesco.org/en/articles/syrias-six-world-heritage-sites-placed-list-world-heritage-danger / UN News https://news.un.org/en/story/2013/06/442802 (the six properties are the Ancient City of Damascus, the Site of Palmyra, the Ancient City of Bosra, the Ancient City of Aleppo, Crac des Chevaliers and Qal'at Salah El-Din, and the Ancient Villages of Northern Syria)
12. The destruction of major temples in 2015 — that the Baalshamin Temple was destroyed in August of that year, followed by the Temple of Bel, was widely reported internationally, including in a UNESCO statement. No primary source recording the details of the destruction was reached
13. The present state of Palmyra — no state of conservation report (SOC) showing its recovery since 2015 was reached, so this article treats it as an ongoing, fluid situation
14. Inscription in 1994 — UNESCO World Heritage Centre's page for the property https://whc.unesco.org/en/list/654/ / Note: the text was not reached (403)
15. That the complete deletion from the World Heritage List in 2007 was the first such case since the World Heritage Convention was adopted in 1972 — UN News https://news.un.org/en/story/2007/06/223932 (a decision of 28 June 2007, on the grounds that the reduction of the sanctuary's area had caused it to lose its OUV)
16. That this case is referenced as a benchmark whenever delisting is discussed — the editorial judgement of this article
17. That widespread coral bleaching has been reported — this reflects environmental-science findings; no primary source showing its distribution was reached
18. That a recommendation to list it as in danger has repeatedly been shelved — following 2021, 2023, and 2024 (the 46th session), the 48th session of the World Heritage Committee (Busan, South Korea) in July 2026 again decided not to include it on the Danger List. Australian Government (Department of Climate Change, Energy, the Environment and Water) official site https://www.dcceew.gov.au/about/news/whc-decision-gbr / on the political merits of this outcome, this article presents both sides without taking a position
19. The point that not being on the Danger List does not mean a site is safe — the editorial judgement of this article
20. Listing as in danger in 2007 (on grounds of invasive species, tourism pressure, and overfishing) — UN News https://news.un.org/en/story/2010/07/346212 / IUCN https://iucn.org/content/galapagos-danger-list-still-risk
21. Removal from the Danger List in 2010 (three years after listing) — UN News https://news.un.org/en/story/2010/07/346212 (which states explicitly that it was on the Danger List for three years)
22. Inscription in 2004 — UNESCO World Heritage Centre's page for the property https://whc.unesco.org/en/list/1156/ / Note: the text was not reached (403)
23. Listing as in danger in July 2006, on grounds of a planned road bridge — UN News https://news.un.org/en/story/2009/06/304632 (an article reporting the delisting that also touches on the circumstances of the earlier listing)
24. That a referendum supported building the bridge and the site was deleted from the List in June 2009 (the second such case after the Arabian Oryx Sanctuary) — UN News https://news.un.org/en/story/2009/06/304632
25. Listing as in danger in 2013 (one of the six Syrian properties listed together) — UNESCO official site https://www.unesco.org/en/articles/syrias-six-world-heritage-sites-placed-list-world-heritage-danger / inscription was in 1986
26. Reports of damage such as the burning of the souks and the collapse of the Great Mosque's minaret — no primary source recording the full picture of the damage was reached. UNESCO World Heritage Centre's page for the property https://whc.unesco.org/en/list/21/ (Note: the text was not reached, 403)
27. The progress of reconstruction — information is limited, and no state of conservation report showing progress was reached
28. The simultaneous decision, under emergency procedure in January 2023, to inscribe the site and list it as in danger — UN News https://news.un.org/en/story/2023/01/1132807 (a decision of 25 January 2023, based on the emergency provisions of the Operational Guidelines)
29. Reports of damage since inscription — this is an ongoing matter, and no primary source that could confirm the extent of the damage was reached
30. Continuous listing as in danger since 1982 — inscription was in 1981 (on Jordan's nomination), and it has been listed as in danger since 1982 up to the present. UNESCO World Heritage Centre's state of conservation page https://whc.unesco.org/en/soc/4039/ / Note: the text was not reached (403)
31. That how the nominating state is designated and the site's political status are separate matters — this is a fact concerning procedure under the World Heritage Convention, and this article does not go into the positions of the parties themselves
32. Tourism pressure on the lagoon — no primary source showing the extent of this pressure was reached
33. The 2021 ban on large cruise ships entering the lagoon and the resulting shelving of a Danger List listing — the Committee's July 2021 session recommended listing the site as in danger, but the listing was shelved after the Italian government banned cruise ships from the lagoon and announced plans to reroute them to the Port of Marghera (news report https://www.nationalobserver.com/2021/07/22/news/venice-cruise-ship-designation-unesco-heritage-site-danger ). The text of UNESCO's decision was not reached
34. Listing as in danger in 1993 (on grounds including hurricane damage and reduced water flow) — UN News https://news.un.org/en/story/2010/07/346462
35. Back-and-forth between listing and removal — the site was removed from the Danger List in 2007 and relisted in 2010 (it remains on the Danger List today). UN News https://news.un.org/en/story/2010/07/346462 (an article reporting the 2010 relisting)
36. Acts of destruction and listing as in danger in 2015 — inscription was in 1985, and it was listed as in danger in June 2015 (the 39th session of the Committee). UNESCO World Heritage Centre https://whc.unesco.org/en/news/1245 / Note: the text was not reached (403)
37. That information is limited because of the situation on the ground — no primary source that could confirm the extent of the destruction or the current state was reached
38. Listing as in danger in 2003 (on grounds that urban development had caused a loss of authenticity in the wooden architecture) — UN News https://news.un.org/en/story/2007/06/223522
39. Removal from the Danger List in June 2007 — UN News https://news.un.org/en/story/2007/06/223522 (a decision of 25 June 2007)
40. The 2015 Gorkha earthquake — this is a separate event from the site's listing and removal, and this article treats it distinctly (no primary source showing the post-earthquake damage and recovery was reached)
41. The sequence of events leading to listing as in danger — Dečani Monastery was inscribed alone in 2004, then listed as in danger in 2006 simultaneously with an extension that added three more sites, and remains listed today. This sequence is agreed only among secondary sources; the text of the UNESCO official primary source was not reached (403)
42. The institutional challenge of conservation management in a territory whose political status is undetermined — this article treats this solely as an institutional issue and does not go into the question of status itself
43. Listing as in danger in 2012 (on grounds of a redevelopment plan) — UNESCO official site https://www.unesco.org/en/articles/world-heritage-committee-deletes-liverpool-maritime-mercantile-city-unescos-world-heritage-list (inscription was in 2004)
44. Deletion from the List in 2021 — UNESCO official site https://www.unesco.org/en/articles/world-heritage-committee-deletes-liverpool-maritime-mercantile-city-unescos-world-heritage-list / UN News https://news.un.org/en/story/2021/07/1096172 / Note: this article describes this as "the third case in history," but depending on whether the 2017 removal of Bagrati Cathedral from "Bagrati Cathedral and Gelati Monastery" (Georgia) is counted as a deletion, this could be either the third or the fourth case (that case was formally processed as a boundary modification). The text of the decision underlying this count was not reached
45. The status of Notre-Dame Cathedral as a component of the inscribed property "Paris, Banks of the Seine" — the unit inscribed as a World Heritage property is the banks of the Seine, not the cathedral alone
46. The 2019 fire — widely reported internationally. The World Heritage Committee adopted a decision expressing solidarity and referring to France's emergency conservation measures, but did not list the site as in danger. The document in question https://whc.unesco.org/en/documents/181788 / Note: the text was not reached (403), so the decision number could not be confirmed
47. The 2024 reopening — no official primary source (from the French government or the cathedral) confirming the reopening was reached
48. Listing as in danger in 2017 (on grounds of the impact on the skyline from a planned high-rise development) — UNESCO official site https://www.unesco.org/en/articles/historic-centre-vienna-inscribed-list-world-heritage-danger
49. Progress on a revised plan and continued listing on the Danger List — the height of the planned building was reduced but still exceeds the recommended value, and the 2024 session of the Committee likewise only decided to keep the site on the Danger List (it has been neither removed nor deleted). This is agreed only among secondary sources; the text of the decision was not reached
50. Listing as in danger in 1992 (on grounds including poaching amid civil unrest) — IUCN https://iucn.org/content/manas-wildlife-sanctuary-road-recovery / UN News https://news.un.org/en/story/2011/06/379182
51. Removal from the Danger List in 2011 — UN News https://news.un.org/en/story/2011/06/379182 / IUCN https://iucn.org/content/manas-wildlife-sanctuary-road-recovery
52. That the inscribed area is the archaeological remains, not the reconstructed buildings — Okinawa Prefecture's official Shuri Castle Park site states explicitly that the property inscribed as World Heritage is the "Shuri Castle site (foundation remains of the main hall)" beneath the main hall, and that the above-ground reconstructed structures are facilities that convey its value rather than the inscribed property itself https://oki-park.jp/shurijo/about/189
53. The 2019 fire and its effect on OUV — what burned was the reconstructed structures; the effect on the underground remains that constitute the inscribed property is assessed separately. Okinawa Prefecture official site https://oki-park.jp/shurijo/blog/detail/6931
54. The circumstances of listing as in danger — the 2000 listing followed damage to part of the garden's water-supply system caused by road-widening work in 1999 (listed at Pakistan's request). UNESCO World Heritage Centre's state of conservation page https://whc.unesco.org/en/soc/242 / Note: the text was not reached (403), so the reason for listing was confirmed only through secondary sources. Where this article generalises the cause as "structural deterioration," the damage from the construction work was in fact the primary cause
55. Removal from the Danger List in 2012 (in recognition of corrective measures carried out) — the state of conservation page cited above https://whc.unesco.org/en/soc/242 / Note: the text was not reached (403)
56. The history surrounding Committee decisions — a decision of the 44th session of the World Heritage Committee (July 2021) (44 COM 7B.30, following on from the earlier 39 COM 8B.14 / 42 COM 7B.10) expresses that the Committee "strongly regrets" that related decisions have not been sufficiently implemented. The decision in question https://whc.unesco.org/en/decisions/7748 / state of conservation page https://whc.unesco.org/en/soc/4085/ / Note: neither text was reached (403); confirmation was limited to titles and summaries. This article deals only with the facts stated in the decision and adds no assessment of its own
57. Differing views concerning the Industrial Heritage Information Centre — the centre opened in Tokyo in March 2020, and a joint UNESCO/ICOMOS advisory mission visited it in June 2021. State of conservation page cited above https://whc.unesco.org/en/soc/4428/ / Note: the text was not reached (403)
58. Listing as in danger in 1979 (on grounds of earthquake damage; around the same time as inscription) — the year and reason for listing agree among secondary sources, but the text of the UNESCO official primary source was not reached (403)
59. Removal from the Danger List in 2003 (following a joint UNESCO/ICOMOS monitoring mission) — as above, the text of the primary source was not reached
60. Concerns expressed by ICOMOS at the time of inscription — on inscription in 2013, the site was asked to develop a visitor-management strategy and an information strategy, and to submit a state of conservation report by 1 February 2016. Handout material (PDF) from the Agency for Cultural Affairs' Cultural Properties Council, World Cultural Heritage Subcommittee https://www.bunka.go.jp/seisaku/bunkashingikai/isanbukai/sekaitokubetsu/4_02/pdf/shiryo_3.pdf / it has not been listed as in danger
61. The periodic reporting framework for state of conservation — this is a mechanism under the operation of the World Heritage Convention, and this article treats it as this general framework (no individual report text was reached)
62. The strain from overtourism — no primary source showing the extent of this strain was reached. No record could be confirmed of the World Heritage Committee having listed this property as in danger or issued a recommendation concerning it
63. Precautionary visitor management undertaken before the stage of listing as in danger — this is a locally led initiative, and this article assigns it this framing as an editorial judgement