6. Petra, Jordan
One of the oldest cities in the world, Petra was occupied thousands of years BC, though it is believed the spectacular sandstone city was built in the 3rd century BC by the Nabatean Arabs. It’s rose-coloured buildings have been viewed by the world in films such as The Mummy Returns and Indiana Jones and the Last Crusade, though around 85% of the city remains underground, yet to be excavated. This online tour includes a guide narrating the interactive walk around some of Petra’s most iconic monuments.