This is the street called Zrinyi utca in Budapest looking towards Szent István Bazilika (St Stephen's Basilica) at the end of the street. In the modern google street view, this street has changed considerably and is now fully pedestrianised, but obviously when this picture was taken cars were allowed to drive down it. I'm not sure of the date this picture was taken, but the design of the cars suggest probably mid 1970s.
This photo was originally a challenge which was won by Bruce, see the comments below.