Volcanic tufa formations, known as fairy chimneys, Pasabag, near Zelve, Cappadocia, Anatolia, Turkey, Asia Minor, Eurasia

The Backs of the River Cam and Kings College Chapel, Cambridge, Cambridgeshire, England, UK

Two people walk past village scene of Oxfordshire cottages and Friesian cows, Swinbrook, The Cotswolds, England, United Kingdom

Cottage in the Cotswolds, Oxfordshire, United Kingdom

Two workers secured with ropes working on vertical surface, chimney, renovation works, Duernrohr power plant, Zwentendorf an der Donau, Lower Austria

Mountain bikers cycling in Love Valley, Guevercinlik Valley, Goereme, Cappadocia, Turkey

The lime kiln building at the Monsted, Monsted Limestone Caves near Viborg, Jutland, Denmark, Europe