Fortified walls at the Unesco world heritage site Suomenlinna sea fortress, Helsinki, Finland, Europe

battlements battlement buildings building capital city capitals capital castles castle walls castle wall castle cultural monuments cultural monument cultural sites cultural site deserted empty europe famous place finland finnish fortifications fortification fortresses fortress helsinki heritages heritage historical historic nobody no one no people northern europe north europe place of interest scandinavia sights sight suomenlinna suomi tourist attractions tourist attraction travel photography travel unesco world heritage sites unesco world heritage site uninhabited viapori walls wall world heritage site