Watch Tower, Wawel Castle, Wawel Hill, Krakow, Poland, Europe

Montjuic Castle old military fortress on Montjuic Mountain overlooking the city, Barcelona, Catalonia, Spain, Europe

Ballycarbery Castle, Cahersiveen, County Kerry, Munster, Republic of Ireland, Europe

Castle, Langenburg, Baden-Wurttemberg, Germany, Europe

Clifden Castle in the rain, ruined manor house near Clifden, Connemara, County Galway, Connacht, Republic of Ireland

Bodelwyddan Castle, Denbighshire, Wales, United Kingdom

Carrigaholt Castle, County Clare, Munster, Republic of Ireland, Europe

Former Imperial Castle, Courtyard, Cochem, Rhineland Palatinate, Germany, Europe

Castelldefels Castle, a frontier fortress in the town of Castelldefels, near Barcelona, Catalonia, Spain, Europe

Josselin Castle, Josselin, Brittany, France

Old garden bench with two flower buckets in the park of Walmer Castle, 1540, in the back ivy (Hedera helix Linnaeus) on a wall, Walmer, Deal, Kent, England, United Kingdom, Europe

Castello Odescalchi, fortress, portal, bastion covered in ivy (Hedera helix), Bracciano, Lazio, Italy, Europe

Water castle Castle Gemen, Muensterland, Borken, North Rhine-Westphalia, Germany

La Roque-Gageac, Dordogne valley, Aquitaine, France, Europe

La Roque-Gageac, Dordogne valley, Aquitaine, France, Europe

La Roque-Gageac, Dordogne valley, Aquitaine, France, Europe

Castle of Villa d'Ayala Valva, river Sele valley, Salerno, Campania, Italy, Europe

Castle of Villa d'Ayala Valva, river Sele valley, Salerno, Campania, Italy, Europe

Yedra Castle in Cazorla, Spain.

Old Stone Bridge With Castle In The Background And Fog, Bunratty, County Clare, Ireland