Denmark

Koldinghus Castle

Kronborg Castle

Rosenborg Castle

Sønderborg Castle

Vordingborg Castle

Nyborg Castle

Sønderskov Manor

Estonia

Narva Castle

Haapsalu Castle

Kuressaare Castle-Fortress

Vastseliina Castle

Finland

Häme Castle

Lappeenranta Fortress

Louhisaari Manor

Olavinlinna Castle

Raseborg Castle

Suomenlinna Sea Fortress

Svartholm Sea Fortress

Turku Castle

Germany

Eutin Castle

Gottorf Castle

Latvia

Araisi Archaeological Park

Bauska Castle

Cēsis Castle

Durbe Manor

Rundāle Palace

Turaida Castle

Ventspils Castle

Lithuania

Biržai Castle

Gediminas Castle Tower

Medininkai Castle

Palace of the Grand Dukes of Lithuania

Panemunė Castle

The Trakai Island and Peninsular Castles

Poland

Kwidzyn Castle

Malbork Castle

The Pomeranian Dukes’ Castle

Olsztyn Castle

Lidzbark Castle

Elbląg Teutonic Castle

Russia

Oreshek Fortress

Peter and Paul Fortress

Vyborg Castle

Sweden

Kalmar Castle

Malmöhus Castle

Skokloster Castle