Patmos, often referred to as the Island of Apocalypse, is a picturesque Greek island in the Aegean sea, noted for its beautiful beaches, its rich history and its spiritual significance. Known as the site where the Book of Revelation was penned, Patmos boasts numerous breathtaking sites, including the majestic Monastery of Saint John the Theologian and the Cave of the Apocalypse. A charm-filled island with narrow streets, Patmos is a superb mix of classic Greek white houses, pristine landscape and deep blue waters.