The Pomeranian Dukes' Castle in Szczecin

Malbork Castle

Eutin Castle

Schwerin Palace

Ludwigslust Palace

Güstrow Palace

Vordingborg Castle

Rosenborg Castle

Koldinghus Castle

Kronborg Castle

Sønderborg castle

Nyborg Castle

Skokloster

Lappeenranta Fortress

Svartholma Fortress

Kastelholm

Turku Castle

Suomenlinna Fortress

Olavinlinna castle

Häme castle

The Peter and Paul Fortress

Oreshek

Kaliningrad

Vyborg

Rakvere Castle

Narva Castle

Haapsalu Castle

Ventspils Castle Museum

Turaida Castle

Riga Castle

Rundâle Palace Museum

Cesis Medieval Castle

Bauska Castle

Trakai Island Castle

Birzai fortress