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.

Ireland, County Laois, Timahoe Round Tower.

Ireland, County Laois, Timahoe Round Tower partly framed by a wall of a monastic ruin with a former Church of Ireland church which is now a heritage centre.

Ireland, County Laois, Timahoe Round Tower partly framed by a wall of a monastic ruin with a former Church of Ireland church which is now a heritage centre.

Ireland, County Laois, Timahoe Round Tower partly framed by a wall of a monastic ruin with a former Church of Ireland church which is now a heritage centre.

Ireland, County Laois, Rock of Dunamase, Ruin of the Barbican entrance gate.

Ireland, County Laois, Rock of Dunamase, Ruin of the Barbican entrance gate.

England, London, View of the Swiss Re Tower 30 St Mary Axe designed by Sir Norman Foster.

England, London, View of the Swiss Re Tower 30 St Mary Axe designed by Sir Norman Foster.

Holland, Rotterdam, Delfshaven, Molen de Distilleerketel or the Distilling Kettle Mill which was built in 1727 and restored in 1986.

Holland, Rotterdam, The Maritime Museum, The Low Light of the Hook of Holland lighthouse that once stood at the Hook of Holland, but has since been dismantled and reassembled at the Rotterdam maritime...