Petra
Petra is an ancient city carved directly into rose-colored sandstone cliffs in southern Jordan, once the capital of the Nabataean Kingdom and a major trading hub along ancient caravan routes.
Petra was established around the 4th century BCE as the capital of the Nabataeans, an Arab trading people who grew wealthy controlling trade routes for incense, spices, and other goods across the ancient Middle East.
The city's most famous structure, Al-Khazneh (The Treasury), is carved directly into a sandstone cliff face and is reached through a narrow rock canyon known as the Siq.
After being abandoned and largely forgotten by the Western world for centuries, Petra was rediscovered by Swiss explorer Johann Ludwig Burckhardt in 1812 and was named a UNESCO World Heritage Site in 1985 and one of the New Seven Wonders of the World in 2007.