(50 BC-50 AD) This area has been dubbed the 'street of Facades' after its rock-cut tombs, which are neatly arranged in ascending street-like rows along the cliff face. The tombs are fairly homogenous in type and appearance, with vertical facades featuring crow-stepped attics and simple rectangular entrances. The design style is said to be Assyrian, based on the similarity of the tombs' stepped designs to Mesopotamian architecture dating to the seventh and sixth centuries BC. Shown here are Assyrian structures constructed in 713 BC for Sargon II Assyria. What is interesting in Petra is that the different styles overlap and merge gradually from tomb to, indicating how Nabataeans drew from different influences in their architecture design, including Assyrian, Hellenistic and Roman.