Juan Manuel Borrero / Bar de Quadras Palace a modernist building, designed by architect Josep Puig i Cadafalch, Eixample District, Barcelona City, Spain, March 2011

Juan Manuel Borrero / Bar de Quadras Palace a modernist building, designed by architect Josep Puig i Cadafalch, Eixample District, Barcelona City, Spain, March 2011

Wild Wonders of Europe / Widstrand / Looking over roof tiles, abandoned building in the Faia Brava Reserve, a Rewilding Europe area, Portugal, March 2011

Loic Poidevin / Lesser kestel (Falco naumanni) nesting amongst roof tiles, Extremadura, Spain, June

Loic Poidevin / Ocellated lizard (Lacerta lepida) on roof tile basking in sun, Extremadura, Spain

Ernie Janes / White Fantail pigeons (Columba sp) on tiles roof, UK

Ross Hoddinott / Male house sparrow (Passar domesticus) on lichen-covered barn roof. Nr Polzeath, Cornwall, UK, July

David Woodfall / Peasant home with chestnut paling tiles covered in snow in alpine village. Romania, October 2010

Juan Carlos Munoz / Ferns growing among the roof tiles, Morteras village, Somiedo NP, Asturias, Northern Spain, November 2009

Juan Carlos Munoz / Roof tiles, Morteras village, Somiedo NP, Asturias, Northern Spain, November 2009

Stephen Dalton / Common pipistrelle bat (Pipistrellus pipistrallus) roosting under roof tiles, UK

Alan Williams / Male Red-legged Partridge (Alectoris rufa) perching on house roof, Cheshire, UK, May 2009

David Tipling / House Sparrow {Passer domesticus} male chirping on roof tiles, Norfolk, UK

David Tipling / House Sparrow {Passer domesticus} male on roof tiles, Norfolk, UK

Eric Baccega / Hauteville House, where Victor Hugo stayed while he was in exile. View of the Dinning room with Victor Hugo's initials on the mantlepiece, made of ceramic tiles. St Peter Port, Guernsey, Channel Islan...

Eric Baccega / Hauteville House, where Victor Hugo stayed while he was in exile. View of the Dinning room with Victor Hugo's initials on the mantlepiece, made of ceramic tiles. St Peter Port, Guernsey, Channel Islan...

Roger Powell / Hoopoe {Upupa epops} pair mating on roof tiles, Castelo Branco, Portugal

Roger Powell / Hoopoe {Upupa epops} pair mating on roof tiles, Castelo Branco, Portugal

Inaki Relanzon / Lesser Kestrel (Falco naumanni) female on roof tiles, South Spain

Inaki Relanzon / Lesser Kestrel (Falco naumanni) female on roof tiles, South Spain

Inaki Relanzon / Spotless Starling (Sturnus unicolor) perched on roof tiles, South Spain

David Kjaer / Jackdaw (Corvus monedula) on rooftop, Gloucestershire, England

Nick Turner / Traditional Cotswold stone roof with small tiles at the top and larger at the bottom. Oxfordshire, UK

Nick Turner / Cotswolds slate roof, Icomb, Gloucestershire, UK

Juan Manuel Borrero / Slate tile roof and chimney in the Pyrenees mountains. Catalonia, Lerida, Spain

Juan Manuel Borrero / Roof in Cuenca city, Spain

Juan Manuel Borrero / View over of the rooftops of Peramea in the Pyrenees mountains, Catalonia, Lerida, Spain

Juan Manuel Borrero / Fountain in the intricate courtyard of Bahía Palace in Marrakech, Morocco December 2007

Philippe Clement / Moss growing in gaps in the tiles on a roof, Belgium

John Cancalosi / Lesser Kestrel (Falco naumanni) on roof tiles, Spain

John Cancalosi / Lesser Kestrel (Falco naumanni) nesting under roof tiles, Spain

Jose B. Ruiz / Common / House sparrows {Passer domesticus} males perching on roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrow female {Passer domesticus} amongst roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrow {Passer domesticus} male on roof tiles with grass in beak, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrows {Passer domesticus} male and female on roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrow {Passer domesticus} male perching on roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrow {Passer domesticus} male perching on roof tiles, calling, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrow {Passer domesticus} male perching on roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Jose B. Ruiz / Common / House sparrows {Passer domesticus} mating on roof tiles, Quintana de la Serena, Badajoz, Extremadura, Spain April

Pete Oxford / Ceramic roof tiles for sale on the side of the road, Jianchuan County bordering Lijiang, Yunnan Province, China 2006

Pete Oxford / Ceramic kiln used for making roof tiles and bricks. Jianchuan County bordering Lijiang, Yunnan Province, China 2006

Nick Turner / Frost on stone roof tiles, Gloucestershire, England

Jean E. Roche / Building with typical architecture of those in the Allier valley and partially obscured by crop of Oil seed rape (Brassica napus), France

Jean E. Roche / Typical architecture of roofs in the south of France, Parc naturel régional du Pilat, France

Jean E. Roche / Remains of building, caravan and van after a bad storm, Poitou, France

Jean E. Roche / Traditional roof and chimney of farmhouse made from wood of Spruce tree, 'Travaillons', Haut Jura, France

Ross Hoddinott / Yellow scale lichen on roof tiles, UK.

Kim Taylor / Brown long-eared bat {Plecotus auritus} roosting beneath roof tiles, Europe.

Jean E. Roche / Traditional slate tiled roof with dormer window. Correze, France

Jose B. Ruiz / Traditional wall tiles, Alcazar, Seville, Spain

Jose B. Ruiz / Cat sleeping beside traditional wall tiles, Alcazar, Seville, Spain

Paul Hobson / Common starling taking worm to nest under roof {Sturnus vulgaris} Norfolk, UK

Gavin Hellier / Looking down on Plaza de Espana, Seville, Andalucia, Spain

Barry Bland / Men repairing a terracotta tiled roof in the town of Dubrovnik, Croatia.

Barry Bland / Terracotta tiled rooftops in the town of Dubrovnik, Croatia.

Angelo Giampiccolo / Late Romanesque bell tower of the cathedral in Gaeta, Latina, Lazio, Italy. The tower has a roof made of colored ceramic tiles, situated in the medieval area of Gaeta, known as Sant' Erasmo.

Angelo Giampiccolo / Late Romanesque bell tower of the cathedral in Gaeta, Latina, Lazio, Italy. The tower has a roof made of colored ceramic tiles, situated in the medieval area of Gaeta, known as Sant' Erasmo.

Angelo Giampiccolo / Woman painstakingly restoring mosaics at the Villa Romana del Casale, Piazza Armerina, Sicily, Italy. The Villa Romana del Casale is a UNESCO World Heritage Site and has the richest, largest and most...

Peter Lewis / House sparrow (Passer domesticus) calling on the roof of a house in Dorset, England.

Juan Manuel Borrero / Slate tile roof with lichen in the Pyrenees mountains, Catalonia, Lerida, Spain

Mike Read / Black redstart juvenile on roof {Phoenicurus ochruros} France