"What on Earth?" is a unique American documentary series that allows viewers to explore the most incredible corners of the globe and uncover their myths and legends. The filmmakers have managed to gather footage from four thousand Earth-orbiting satellites to introduce audiences to astonishing places and structures. Over the course of nine seasons, you will witness the most unusual sights, from a bloody lake near Baghdad to Viking gates, from castles in the swamps of Louisiana to a lost zombie city in rural America. Where would you prefer to journey today?