Wales, Denbighshire, Llangollen, View looking east over landscape through ruined archway of Castell Dinas Bran.

England, Dorset, Corfe Castle, View over ruined castle from Challow Hill.

Turkey Didyma, Ruined carving of Medusa head.

Ireland, County Carlow, Carlow Castle one of the most important Anglo-Norman castles in Ireland thought to have been built by William de Marshal between 1207 and 1213).

Egypt, Luxor, Tourist hot air balloon over ruined temple in early evening light.

Ireland, County Donegal, Bloody Foreland, Ruined house with housing, sea and Tory Island in the background.

Portugal, Lisbon, Igreja do Carmo, View of skeletal arches of the Carmelite church ruined in the earthquake of 1755 dating from the late 14th century.

Portugal, Lisbon, Igreja do Carmo. View looking up to skeletal arches of the Carmelite church ruined in the earthquake of 1755 dating from the late 14th century.

Greece, Attica, Athens, Hadrian's Arch.

Greece, Attica, Athens, Temple of Olympian Zeus.

Greece, Attica, Athens, Temple of Olympian Zeus.

Greece, Attica, Athens, Archaeological site of a Roman bath, beside the National Gardens and Zappeion.