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.

Ireland, County Laois, Emo Court, Facade of the house with pathway leading up to it, Emo Court is a quintessential neo-classical mansion designed by the famous architect James Gandon1790.

Ireland, County Laois, Emo Court, Facade of the house framed by two tall trees, Emo Court is a quintessential neo-classical mansion designed by the famous architect James Gandon1790.

Ireland, County Laois, Emo Court, Facade of the house framed by overhanging tree branches, Emo Court is a quintessential neo-classical mansion designed by the famous architect James Gandon1790.

Ireland, County Kildare, Moone High Cross dating from the 8th century but which lay buried and undiscovered until 1835 before being restored.

Ireland, County Carlow, Borris, restored 19th century railway viaduct dating from 1858.

Afghanistan, Balkh Province, Mazar-e Sharif, Blue Mosque. Exterior of fifteenth century mosque.

England, London, Millennium Wheel seen from across the Thames.

England, London, Flags flying on either side of bridge view to St Pauls.

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

Italy, Sicily, Syracuse, Neapolis Archaeological Park, Greek Amphitheatre.

Italy, Sicily, Castelmola Castle, A doorway in the wall

Italy, Sicily, Castelmola Castle, A doorway in the wall

Italy, Sicily, Taormina, Saracens Castle above the town.

England, East Sussex, Brighton, ruins of the burnt out West Pier fallen into the sea.

England, East Sussex, Brighton, ruins of the burnt out West Pier fallen into the sea.

Ireland, County Offaly, Clonmacnoise monastery, South Cross preserved in controlled atmospheric conditions.

Greece, Aegean Islands, Cyclades, Naxos. Ruins of temple and the Portara Gateway, marble doorway framing view of white painted Naxos Town below.

Turkey, Istanbul, Sultanahmet, stone column in Topkapi Palace Gardens.

Mexico, Federal District, Mexico City, Chac Mool figure at the entrance to Tlaloc Shrine in the Templo Mayor Aztec temple ruins.

Mexico, Oaxaca, Monte Alban archaeological site, Ruins of Monticulo J and Edifio I,H and G buildings in the central plaza.

Mexico, Oaxaca, Monte Alban, Edificio buildings G, H and I in the central plaza.