How is it even possible to carve a city into rock?
The façades of the buildings were carved right into the walls of a canyon and they are mind-blowing. The elegant carving shows the high level of development of this civilization and the craftsmanship of the builders.
The main entrance is called Al-Khazneh (The Treasury). It was named this by the local Bedouins who believed that all the riches were inside. The gate is carved out of rose stone which is why Petra is also called Rose City.