Petra is the name of a historical city located in modern-day Jordan. It is probably the biggest tourist attraction in all of Jordan, and many people consider it to be one of the modern wonders of the world. Petra was originally known as Raqmu by its inhabitants, the Nabataeans. The Nabatataeans were a nomadic Arab people who used Raqmu as their capital city. Petra is truly an architectural and historical marvel, largely due to its rock-cut architecture. Many of the “buildings:” that can be found in Petra are carved directly into the stone, which is obviously something to behold, especially at Petra’s scale. The world was able to learn of the existence of Petra thanks to Johann Ludwig Burckhardt, a Swiss explorer who introduced it to the public in 1812. Petra could have been built as early as the 5th century BC, but it still holds up today.