Pohnpei is a high island in Micronesia. It is famous for its enormous megalithic structures, which were formerly religious sites. The most impressive of these had, however, been abandoned by the time the islanders came into regular contact with Europeans. Pohnpei is believed to mean 'upon a stone altar', a reference to the myth that the founding settlers had built up the island, with the help of the gods, from an enormous altar.