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25 Cultural and Natural Wonders in Danger

National Geographic Logo By Gulnaz Khan of National Geographic | Slide 1 of 25: More than a hundred islets off the coast of Pohnpei form the ceremonial site of Nan Madol. Ruins of stone palaces, temples, and tombs dating from 1200 to 1500 A.D. reveal the Pacific Island culture of the Saudeleur dynasty.In 2016, Nan Madol was added the "in danger" list due to mangrove overgrowth, storm surge, and stonework collapse.

Nan Madol, Micronesia

More than a hundred islets off the coast of Pohnpei form the ceremonial site of Nan Madol. Ruins of stone palaces, temples, and tombs dating from 1200 to 1500 A.D. reveal the Pacific Island culture of the Saudeleur dynasty.

In 2016, Nan Madol was listed "in danger" due to mangrove overgrowth, storm surge, and stonework collapse.

© Photograph by Paul Chesley, National Geographic Creative

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