Amalienborg

Christiansborg Palace

Koldinghus Castle

Kronborg Castle

Haapsalu Castle

Kuressaare Castle-Fortress

Narva Castle

Paide Order Castle

Põltsamaa Castle

Rakvere Castle

Toolse Castle

Vastseliina Castle

Hamina Fortress

Häme Castle

Lappeenranta Fortress

Louhisaari Manor

Olavinlinna Castle

Raseborg Castle

Riihisaari – Savonlinna Museum

Suomenlinna Sea Fortress

Svartholm Sea Fortress

Turku Castle

Riga Castle

Bauska Castle

Cēsis Castle

Durbe Manor

Turaida Castle

The Tower of the Tukums Castle

Biržai Castle

Gediminas Castle Tower

Kaunas Castle

Klaipeda Castle

Medininkai Castle

Palace of the Grand Dukes of Lithuania

Panemunė Castle

Raudondvaris Manor

Siesikai Castle

The Trakai Island and Peninsular Castles

Elbląg Teutonic Castle

Kwidzyn Castle

Malbork Castle

Lidzbark Castle

Olsztyn Castle

The Pomeranian Dukes’ Castle

Wisłoujście Fortress

Sztum Castle

Borgholm Castle

Kalmar Castle

Läckö Castle

Malmöhus Castle