20 palaces visited by Helder Duarte
Austrian Parliament Building
Buckingham Palace
Buda Castle
Crystal Palace Retiro
Gellert Baths and Spa
Greek Parliament
Hofburg
Hundertwasser House
Hungarian Parliament
Les Invalides
Palace of Westminster
Palacio de Cibeles
Palais-Royal
Palazzo Venezia
Quirinal Palace
Royal Palace of Madrid
Szechenyi Thermal Bath
Vienna City Hall
