Khortytsya - a legendary island in the Dnieper River near Zaporizhzhya, the largest river island in the world. He was even known to the Byzantine emperors. Here's what he wrote about the island of Byzantine Emperor Constantine Porphyrogenitus (946-953 AD): "After a Carian transportation, Russ dock to the island, which bears the name of St. George. On this island, they bring their sacrifices. There is a huge oak tree ... This sacred oak, which is described by Constantine Porphyrogenitus, dostoyal right up to 1871 and withered with age - he was about two thousand years! Oak survivor managed to keep some as a monument