Top choice in Nizhny Novgorod

Built on remnants of an earlier settlement, Nizhny Novgorod’s magnificent kremlin dates to 1500–15 when Italian architect Pyotr Fryazin began work on its 13 towers and 12m-high walls. Most of the buildings are government offices, though the city's two most important museums are here as well as the 17th-century Cathedral of the Archangel Michael and a striking Monument to Heroes of WWII. You can walk the walls from May to November and take in riverside views.