aerial drone view of chkalov ladder or volzhskaya staircase in nizhny novgorod, which connects the upper volga and the lower volga

aerial architecture attraction background building center chkalov city cityscape cloud day drone embankment fortification fortress heritage hill historic history kremlin ladder landmark landscape medieval memorial monument nizhniy nizhny novgorod promenade river russia sky staircase stairs step summer sunny tourism tourist tower travel view volga wall water