In this fully illustrated ebook, TV’s Dan Snow brings to life a cavalcade of medieval fortifications and allows the reader to experience the clashes up close. (Images best viewed on a tablet.)

Castles and their ruins still dominate the landscape and are a constant reminder to us of a time when the threat of violence was very real.

Dan Snow explores the world’s greatest castles including Dover Castle, Castillo de Gibalfaro, the last vanguard of Moorish rule in Spain, and Krak des Chevaliers in Syria – an astounding feat of engineering by the Crusaders.

Spanning the globe, and using the latest CGI reconstructions to explore the building and life of each castle, Dan Snow gets to the heart of the greatest fortresses of the Middle Ages.