This mansion built in the Art Nouveau style was formerly a seat of Princesses. It was renovated to its former glory - even the appliances work!
Official website http://www.kpalace.ru/
Phone +7 812 315 5937
Address Конногвардейский бульвар 7, 190000 Ст. Петербург, Россия
Coordinates 59°56'3.005" N 30°18'0.018" E