England, Cornwall, Bodmin Moor, Rough Tor, basin shaped holes in granite rock surface cause by weathering by frost and wind erosion combined.

England, Cornwall, Bodmin Moor, Rough Tor, basin shaped holes in granite rock surface cause by weathering by frost and wind erosion combined.

England, Yorkshire, Swaledale, View over sheep grazing on farmland with stone huts.

England, Yorkshire, Swaledale, View over sheep grazing on farmland with stone huts.

Wales, Pembrokeshire, View from Garn Fawr over farmland toward Stumble Head Lighthouse.

England, Cornwall, Millock Bay, Sea cliffs showing folding in rock face.

Italy, Lazio, Rome, Piazza del Campidoglio designed by Michelangelo, Angular view of the statue of the Roman Emperor Marcus Aurelius on horseback with the clock tower of Palazzo Senatorio in the backg...

Italy, Lazio, Rome, Piazza del Campidoglio designed by Michelangelo, Angular view of the Palazzo Senatorio.

Italy, Lazio, Rome, Piazza del Campidoglio designed by Michelangelo, Angular view of the Statue of Castor with the Palazzo Senatorio in the background.

Italy, Lazio, Rome, The Colosseum amphitheatre built by Emperor Vespasian in AD 80, View of a section of the south side.

Italy, Lazio, Rome, The Colosseum amphitheatre built by Emperor Vespasian in AD 80, View of the full south side with tourists both inside and outside.

Italy, Emilia Romagna, Bologna, One of the city's many arcades.