10th-century fortifications

castle in the Loire valley France and location of château de montsoreau-museum of contemporary art

fortress

type of circular fort built in Scandinavia in the Viking Age

fort in Rajasthan, India

castle

Amberd () is a 10th-century fortress located above sea level, on the slopes of Mount Aragats at the confluence of the Arkashen and Amberd rivers in the province of Aragatsotn, Armenia. The name translates to "fortress in the clouds" in Armenian. It is also the name incorrectly attributed to Vahramashen Church, the 11th-century Armenian church near the castle. The village of Byurakan is from the site of Amberd.

Bagras or Baghrās, ancient Pagrae (; ), is a ruined medieval castle in the İskenderun district of Turkey, in the Amanus Mountains.

castle in Javier, Spain

castle in Wallonia

fortress in Namur, Belgium

castle

castle in Calascio (AQ), Italy

fortifications in and around Luxembourg City, Luxembourg, largely dismantled in 1867

former castle in Lusignan, France

Set of fortifications in the Spanish city of Ceuta

Grade I listed castle in East Hertfordshire, England, UK

system of defensive walls and ditches located southwest of the Yoruba town of Ijebu Ode

fort in Algeria

promontory in Luxembourg City

cultural property in Tarifa, Spain

cultural property in Calzada de Calatrava, Spain

French castle

city gate in Mahdia, Tunisia

10th century palace of the Holy Roman Empire, located in Lower Saxony

castle in Felino, Italy