Ancient Civilizations: Lost Worlds of the Past explores the legend of Thule, the mysterious northernmost land first described by Greek explorer Pytheas in the 4th century BCE. Said to be a place of extreme daylight variations and icy seas, Thule has been linked to locations such as Iceland, Norway, and the Shetland Islands. Over time, it became a symbol of the unknown and an inspiration for utopian myths. While its true location remains uncertain, Thule continues to captivate historians, scientists, and adventurers as a representation of humanity’s endless quest for discovery.