Setting the scene for well-known Hollywood films like Indiana Jones and The Last Crusade and the Mummy Returns, Petra is an ancient Nabataean city of awesome proportions. Siq, meaning ‘shaft’ in Arabic, this narrow tunnel formed as a split in the sandstone rock represents the dramatic entrance to the ancient city of Petra and a marvel of geology. In places, the channel is only 3m wide, yet 80m tall, featuring inscriptions in ancient languages.