Redwood Castle

Birr Castle is a large castle in the town of Birr in County Offaly,

Clonony Castle is a Tudor castle built by the MacCoughlan clan, and

The monastery of Clonmacnoise (Cluain Mhic Nóis in Irish, meaning

Inis Cealtra, or Holy Island, is an island off the western shore of

Durrow Abbey is a historic site in Durrow, County Offaly in Ireland.

Athenry Castle is a tower house and National Monument located in

Kilmacduagh Monastery is a ruined abbey near the town of Gort in

Fiddaun Castle is a tower house in Tubber, County Galway, in Ireland.

Neuschwanstein Castle (German: Schloss Neuschwanstein, pronounced ])

Her Majesty's Royal Palace and Fortress, more commonly known as the

The Mausoleum of Hadrian, usually known as the Castel Sant'Angelo, is

The Castle of Gruyères (in french: château de Gruyères), located in th

St Michael's Mount (Cornish: Karrek Loos yn Koos, meaning 'hoar rock