Castel Sant'Angelo, also known as the Mausoleum of Hadrian, is a towering cylindrical building in Parco Adriano, Rome, Italy.
Kerestinec Castle is a well-preserved fortress located near the village of Kerestinec.
Westenhanger Castle is a Grade I listed building and a scheduled monument.
Bodiam Castle is a 14th-century moated castle near Robertsbridge in East Sussex, England.
Hever Castle is a double-moated castle located in the village of Hever, Kent.