The archaeological site of Lepenski Vir is the most significant cultural monument in the National Park Đerdap and also one of the most important prehistoric sites in Europe. Systematic excavations have been conducted from 1965 to 1970. On the basis of the archaeological data four main phases could be distinguished / Proto Lepenski Vir, Lepenski Vir I, Lepenski Vir II and Lepenski Vir III. It dates from 6500 to 4500 BC. Particular importance of the Lepenski Vir lies in the fact that there was a permanent settlement established there in the time when elswere in Europe there were only temporary shelters of nomadic hunters. High degree of social organization is visible in the urbanization of the every of its seven horizons belonging to the hunter-gatherer communities of Lepenski Vir. All these distinguished Lepenski Vir as the oldest urban settlement in Europe. The main characteristic of Lepenski Vir architecture are the houses of trapeyoid ground plan. Namely, the ground plan is truncated sector of 60 degrees. All the houses were of identical shape and different only in size.