45 Ancient Ruins That Are Even More Stunning Than the Pyramids

17. Nan Madol – The Lost Venice of the Pacific (Micronesia)

Hidden in the remote waters of the Pacific, off the island of Pohnpei, lies Nan Madol—a city built entirely on an artificial series of islands and canals. Often called the “Venice of the Pacific,” this mysterious city dates back to the 8th century AD and was the political and religious center of the Saudeleur Dynasty. Massive basalt stones were transported across the ocean to construct its towering walls and platforms, despite the lack of modern tools or machinery. How these enormous blocks—some weighing 50 tons—were moved remains an unsolved mystery. Abandoned centuries ago, Nan Madol is now overgrown with jungle, adding to its eerie beauty.