Patmos is a Greek island, which belongs to the Dodecanese. Patmos is a small island, just 34 km² but with a long history. On this very small island in the Aegean the Revelation of Saint John was written, one of the most important texts in Christianity.

Chora of Patmos, the capital of the island is a conserved medieval town, together with the Monastery of Saint John the Theologian which is located in the centre of the town have both been declared Unesco World Heritage sites.

Between Chora and Skala the port of Patmos, is the sacred Cave of the Apocalypse. The cave in which according to tradition, God dictated to St. John the text of Revelation.