Bikini Atoll Nuclear Test Site


World Heritage Identification Number: 1339

World Heritage since: 2010

Category: Cultural Heritage

Transboundary Heritage: No

Endangered Heritage: No

Country: 🇲🇭 Marshall Islands

Continent: Oceania

UNESCO World Region: Asia and the Pacific

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Bikini Atoll Nuclear Test Site: A Symbol of the Dawn of the Nuclear Age

The Bikini Atoll Nuclear Test Site, located in the Marshall Islands, stands as a poignant reminder of the advent of the nuclear era. Inscribed on the UNESCO World Heritage List in 2010, this atoll bears witness to the profound impact of nuclear testing during the latter half of the 20th century.

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UNESCO Description of the World Heritage Site

In the wake of World War II, in a move closely related to the beginnings of the Cold War, the United States of America decided to resume nuclear testing in the Pacific Ocean, on Bikini Atoll in the Marshall archipelago. After the displacement of the local inhabitants, 67 nuclear tests were carried out from 1946 to 1958, including the explosion of the first H-bomb (1952). Bikini Atoll has conserved direct tangible evidence that is highly significant in conveying the power of the nuclear tests, i.e. the sunken ships sent to the bottom of the lagoon by the tests in 1946 and the gigantic Bravo crater. Equivalent to 7,000 times the force of the Hiroshima bomb, the tests had major consequences on the geology and natural environment of Bikini Atoll and on the health of those who were exposed to radiation. Through its history, the atoll symbolises the dawn of the nuclear age, despite its paradoxical image of peace and of earthly paradise. This is the first site from the Marshall Islands to be inscribed on the World Heritage List.

Encyclopedia Record: Bikini Atoll

Bikini Atoll, known as Eschscholtz Atoll between the 19th century and 1946, is a coral reef in the Marshall Islands consisting of 23 islands surrounding a 229.4-square-mile (594.1 km2) central lagoon. The atoll is at the northern end of the Ralik Chain, approximately 530 miles (850 km) northwest of the capital Majuro.

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Additional Site Details

Area: 73,500 hectares

UNESCO Criteria: (iv) — Outstanding example of a type of building or landscape
(vi) — Directly associated with events or living traditions

Coordinates: 11.6 , 165.3805555556

Image

Image of Bikini Atoll Nuclear Test Site

NASA, Public domain

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Nearby World Heritage Sites

Nan Madol: Ceremonial Centre of Eastern Micronesia
937 km — Micronesia (Federated States of)

Country Information: Marshall Islands

Flag of Marshall Islands

Official Name: Republic of the Marshall Islands

Capital: Majuro

Continent: Oceania

Population (2024): 37,548

Population (2023): 38,827

Population (2022): 40,077

Land Area: 180 sq km

Currency: United States dollar (USD)

Country Data Sources

Last updated: January 18, 2026

Portions of the page Bikini Atoll Nuclear Test Site are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Bikini Atoll, licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

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