Sokograd

Bosnia and Herzegovina

Sokolac

Bosnia and Herzegovina

Sokolac Castle

Croatia

Solapur fort

India

Solec nad Wisłą

Poland

Solhof Castle

Belgium

Solliden Palace

Sweden

Private residence

Solnør

Norway

Solovetsky Monastery

Russia

Solre-sur-Sambre Castle

Belgium

Soltaniyeh castle

Iran

Solvay Castle

Belgium

Solymos Castle

Hungary

Solymár Castle

Hungary

Sombeke Castle

Belgium

Castle

Sombreffe Castle

Belgium

Somló Castle

Hungary

Somma Lombardo

Italy

Sommergården

Norway

Soncino Castle

Italy

Sondrio

Italy

Songadh Fort

India

Songir

India

Songiri

India

Sophienberg Palace

Denmark

Sopot Fortress

North Macedonia

Sopron Castle

Hungary

Sorano

Italy

Sorgenfri Palace

Denmark

Sorghvliedt Castle

Belgium

Sorø Abbey

Denmark

Sostra castrum

Bulgaria

Sostrup Castle

Denmark

Sovana

Italy

Sparreholm Castle

Sweden

Private residence, museum

Spaso-Yakovlevsky Monastery

Russia