Castle: Did you mean...?

Rochester Castle, Kent, England, which was built from the late 11th-12th century CE and which has one of the best-preserved tower keeps anywhere.

Illustration of the Siege of Rochester Castle (1215 CE) by Rocío Espin. Courtesy of Medieval Warfare Magazine / Karwansaray Publishers.

Dover Castle, Kent, England. First built by William the Conqueror in the 11th century CE it was then extensively rebuilt with new walls and a keep added by Henry II (r. 1154-1189 CE)

Illustration of the construction of Conwy Castle from 1283 to 1289 CE, by Rocío Espin. Medieval Warfare Magazine / Karwansaray Publishers.

Chester Castle - Cheshire, England. Built in 1070 CE by Hugh d'Avranches, the second Earl of Chester.

A window seat in the tower keep of Dirleton Castle, East Lothian, Scotland. 1240 CE.

Caerlaverock Castle is a triangular, moated castle built in the 13th Century CE. The castle has been partially demolished and rebuilt numerous times over the centuries, but its unique shape has remained constant. Located in Dumfries and...

Launceston Castle in Cornwall, England. It is an example of a motte and bailey castle and was first built in the 11th century CE and added to in subsequent centuries.

The Eagle Tower of Caernarfon Castle, Wales. The castle was built by Edward I of England from 1283 to 1330 CE.

Masyaf castle, Orontes Valley, Syria, one-time castle of the Assassins (aka Nizari Ismailis) from c. 1141 CE to 1256 CE.