Spain, Castile, Segovia, Monasterio de Santa María del Parral, founded by King Henry IV of Castile in the 1450's, cloister with the Alcazar in the background .

Spain, Castile, Segovia, Monasterio de Santa María del Parral, founded by King Henry IV of Castile in the 1450's.

Spain, Castile, Segovia, Iglesia de San Millan dating from the 12th century.

Austria, Tyrol, Innsbruck, Altstadt, The Triumphal Arch or Triumphpforte dating from 1765 framing the Servitenkirche or Servite Church.

Austria, Tyrol, Innsbruck, Altstadt, The Triumphal Arch or Triumphpforte dating from 1765 framing the Servitenkirche or Servite Church.

England, Shropshire, Ironbridge, Grade 1 listed cast iron bridge across the river Severn.

England, Shropshire, Ironbridge, Grade 1 listed cast iron bridge across the river Severn.

England, Shropshire, Ironbridge, Grade 1 listed cast iron bridge across the river Severn.

Spain, Castile and Leon, Segovia, Evening light streaming through the arches of the Aqueduct of Segovia, a Roman aqueduct with 167 arches built around the first century AD to channel water from spring...

Spain, Castile and Leon, Segovia, Traffic signs with the Aqueduct of Segovia, a Roman aqueduct with 167 arches built around the first century AD to channel water from springs in the mountains 17 kilom...

Spain, Castile and Leon, Segovia, Aqueduct of Segovia, a Roman aqueduct with 167 arches built around the first century AD to channel water from springs in the mountains 17 kilometres away to the city'...

Spain, Castile and Leon, Segovia, Aqueduct of Segovia, a Roman aqueduct with 167 arches built around the first century AD to channel water from springs in the mountains 17 kilometres away to the city'...