Shush Castle

Iran

Shusha fortress

Azerbaijan

Sialkot Fort

Pakistan

Sianów

Poland

Sib and Suran castle

Iran

Siba Fort

India

Sibbesborg

Finland

Totally ruined

Sibi Fort

Pakistan

Sibiel

Romania

Sibiu

Romania

Siddavatam Fort

India

Siddhagad

India

Sidon Sea Castle

Lebanon

Siedlisko

Poland

Siedlęcin Tower

Poland

Sielecki Castle

Poland

Sieraków

Poland

Siesikai Castle

Lithuania

Siewierz

Poland

Sighișoara

Romania

Sigmundskron Castle

Italy

Signa

Italy

Sigulda Medieval Castle

Latvia

Impressive ruins

Sihlea

Romania

Sikar

India

Siklós Castle

Hungary

Silesian Voivodeship

Poland

Silkeborg slot

Denmark

Silla’s Fortress

Italy

Simeria

Romania

Simonopetra monastery-fortress

Greece

Byzantine period

Simontornya Castle

Hungary

Sinaia

Romania

Sinclairsholm Castle

Sweden

Private residence

Sindhudurg Fort

India

Singer Castle

the United States