Robin Chittenden / Peregrine falcon (Falco peregrinus) flying past spire, Norwich Cathedral, Norfolk, UK, June.

Robin Chittenden / Peregrine falcon (Falco peregrinus) on statue's head, Norwich Cathedral, Norfolk, UK, June

Terry Whittaker / 2020VISION / RSPB staff member Emma Cambell showing peregrines to young woman at RSPB 'Date With Nature Event' for learning about urban Peregrine falcon, Tate Modern, South Bank, London, UK, September 2011, RSPB G...

Mark Taylor / 'The Marble Cathedrals' - marble rocks dissolved and sculpted by water. Rio Tranquilo, Chile, March 2010.

Wild Wonders of Europe / Geslin / Herring gulls (Larus argentatus) perched on statues of the Saints in St Peter's Square, Vatican, Rome, Italy, March 2010

Peter Lewis / Sun rising through mist behind Salisbury Cathedral viewed across Harnham Water Meadows. Salisbury Wiltshire, England. March 2009

Angelo Gandolfi / Bicycle pilgrims resting in front of Santiago de Compostela cathedral, after cycling the Camino de Santiago ("Way of St. James"). Galicia, Spain, July 2008.

Wild Wonders of Europe / Geslin / Peregrine falcon (Falco peregrinus) chick with new rings, Sagrada familia cathedral, Barcelona, Spain, April 2009

Jose B. Ruiz / Granada cathedral, Spain

Jose B. Ruiz / Seville Cathedral floodlit at dusk, Spain

Robin Chittenden / Peregrine (Falco peregrinus) fledgling landing on cathedral roof, Norwich UK GB June 2018

Gavin Hellier / Timelapse of boats on the River Seine at night, next to Notre Dame, Paris, France, May 2016. Hellier