The modern center with surviving parts of the old city are on the hilly west, or right bank, of the Dnipro River. The main street, Khreshchatik, runs between two steep hills. Parallel about half a kilometer west, is vulytsya Volodymyrska, the main street of the Old Kyiv area (Staryj Kyiv).
http://www.traveltoukraine.org/kyiv.htm