17 palaces visited by Sergey Drozd
Belvedere Vienna
Buda Castle
Doge's Palace
Dolmabahce
Drottningholm Palace
Hofburg
House of the Blackheads
Hungarian Parliament
Les Invalides
Palazzo Venezia
Pena National Palace
Petergof
Summer Palace of Peter the Great
Topkapi
Vaux-le-Vicomte
