Alex Hyde / European cave spider (Meta menardi) on ceiling of cellar. Worcestershire, UK. April.

Niall Benvie,Niall Benvie / Common Frog (Rana temporaria) at surface, against white background. Scotland, UK, July.

Daniel Heuclin / Common house gecko (Hemidactylus frenatus) indoors on ceiling, introduced species. Sumatra.

Daniel Heuclin / Common house gecko (Hemidactylus frenatus) indoors on ceiling, introduced species. Sumatra.

Jeff Rotman / Cannabis plants growing under artificial light, in organic Marijuana farm, Pueblo, Colorado, USA, June 2015. . Marijuana has been legalized in the state of Colorado, and this farm produces Marijuana...

Constantinos Petrinos / Details of the paintings of angels (cherubs) in the ceiling of the Debre Birhan Selassie (Trinity and Mountain of Light) Church in the outskirts of Gondar, Amhara Region, Semien Gondar Zone, Ethiopia...

Enrique Lopez-Tapia / View looking up to archways, in rock hewn church - Bet Giyorgis Church, Lalibela. UNESCO World Heritage Site. Ethiopia, December 2014.

Steve O. Taylor (GHF) / Skulls of enemies kept in ceilings of Dayak headhunters' longhouses, Kuching, Sarawark, Malaysian Borneo. July 2010.p

Steve O. Taylor (GHF) / Human skulls of enemies, possibly Japanese occupation troop,s kept in ceilings of Dayak headhunters' longhouses, Central Kalimantan, Indonesian Borneo. June 2010.

Steve O. Taylor (GHF) / Human skulls of enemies, possibly Japanese occupation troop,s kept in ceilings of Dayak headhunters' longhouses, Central Kalimantan, Indonesian Borneo. June 2010.

Gavin Hellier / The famous painting on the ceiling of the winged heads of 80 Ethiopian cherubs, Debre Selassie Church, 'Trinity of the Mount of Light', UNESCO World Heritage Site, Gonder, Ethiopia 2005

Juan Manuel Borrero / Basilica and Expiatory Church of the Holy Family / Basílica y Templo Expiatorio de la Sagrada Familia, designed by architect Antoni Gaudi, Eixample district, Barcelona City, Spain, November 2011