The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only use of nuclear weapons in armed conflict.
Petra is half-built, half-carved into the rock, and is surrounded by mountains riddled with passages and gorges. ... It is one of the world's most famous archaeological sites, where ancient Eastern traditions blend with Hellenistic architecture.
