Carcassone fortress, France (description in 1st comment).
Neuschwanstein Castle (description in 1st comment)
The Beautiful Edinburgh Castle
Castle de Haar, Netherlands. (Short description in 1st comment)
Lindisfarne castle – Northumbria 1550. Built with the stones of the ruined Lindisfarne Priory. Site of the infamous 793 Viking raid and the beginning of the Viking age.
Building ? Gallery