Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with an angular view of the 15th century Tower of John 2nd of Castile from the inner courtyard.

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with a view of some of the turrets on the 15th century Tower of John 2nd of Castile seen from the Plaza de la Reina Victoria in front...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, close up view from the right on the Plaza de la Reina Victo...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, view from the right on the Plaza de la Reina Victoria in fr...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, angular view from the left on the Plaza de la Reina Victori...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, view from the left of the Plaza de la Reina Victoria in fro...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, head on view from the Plaza de la Reina Victoria in front o...

Spain, Castile and Leon, Segovia, 12th century Alcazar of Segovia with the 15th century Tower of John 2nd of Castile being the main feature, head on view from the Plaza de la Reina Victoria in front o...

Ireland, County Waterford, Waterford city, King of the Vikings cultural centre, carved figure at the building's gable.

Ireland, County Waterford, Waterford city, King of the Vikings cultural centre which is the world's first virtual reality experience set in an authentic Viking house in medieval Waterford.

Ireland, County Waterford, Waterford city, Reginalds Tower which was built by the Anglo-Normans after their conquest of Waterford, replacing an earlier Viking fortification.

Ireland, County Waterford, Waterford city, Reginalds Tower which was built by the Anglo-Normans after their conquest of Waterford, replacing an earlier Viking fortification.