Petrified brimstones have been found south of the Dead Sea. Brimstone is said to have rained down upon Sodom and Gomorrah burning the Cities of the Plain to the ground. Some feel this brimstones may be the very ones that fell on Sodom and Gomorrah.
A Cuneiform clay tablet has been revealed to describe an asteroid impact which in 3123 BC hit Köfels, Austria, leaving in its wake a trail of destruction which may acccount for the biblical tale of Sodom and Gomorrah. The Planisphere clay tablet - inscribed around 700 BC - was unearthed in the remains of the library of the Assyrian royal palace at Nineveh. It's a copy of the night diary of a Sumerian astronomer containing drawings of constellations.
Strange city-like formations are seen in the rock cliffs south of the Dead Sea. Some suggest the ruins of Sodom and Gomorrah can be found in this area. The Bible locates the cities in the plains south of the Dead Sea.