Nan Madol is an ancient archaeological site located on Pohnpei island in Micronesia. Known as the Venice of the Pacific, this unique city was built over a lagoon and is interconnected by a network of canals. The basalt stone structures and intricate architecture are an engineering marvel and a testament to the skills of the ancient people who lived there. Nan Madol dates back to the 12th century and is a UNESCO World Heritage Site.