Press TV has a fascinating run down of what has been found in an ancient city in Burnt City, Key to lost civilization. Here are some of the article's highlights.
The city of Shahr-e-Sookhteh (Shahr-i-Sokhte) covers 151 hectares in east Iran near the Afghanistan border. It has been excavated by Iranian and Italian archaeologists since the 1970s. There is a possibility that it points to another prehistoric civilization east of Persia.

Shahr-e-Sookhteh was built around 3200 and abandoned around 2100 B.C. It is called the Burnt City because is was never rebuilt after the last of its four devastating fires. Archaeologists have excavated the earliest known backgammon game with 60 pieces made of turquoise and agate and a board of ebony, dice with indentations for the numbers on each side of the cube (as opposed to the bone piece the Romans used for gambling), artificial eye attached by a golden thread for a possibly Arabian woman 6' tall, and caraway seeds. A skull suggests they may have done brain surgery, which may help prove that the Egyptians were not the first brain surgeons.

The necropolis of the Burnt City has yielded more than 600 skeletal remains in more than 108 graves, including family graves. Some were buried lying down or on their sides; others were squatting.