Metropolitan and Primatial Cathedral Basilica of Santa Tecla (Tarragona Cathedral), Tarragona, Catalonia, Spain

St Nicholas Russian Church, Sofia, Bulgaria

Blacksmith, Axoum, Ethiopia, Africa

HEART Museum of Contemporary Art with reflecting pool and lawn, Herning, Denmark, Europe

Decorated pillars at Cloisters of The Company, Arequipa, Peru, South America

View of interior of the Harpa Concert Hall and Conference Centre, Reykjavik, Iceland

Titanium clad facade, Guggenheim Museum, Architect Frank Gehry, Bilbao, Basque Country, Spain, Europe

L'Arc Rouge (The Red Arch) by the French artist Daniel Buren on La Salve Bridge (The Prince and Princess of Spain Bridge) in front of the Guggenheim Museum designed by architect Frank Gehry, Bilbao, province of Biscay, Basque Country, Spain, Europe

Tulips by artist Jeff Koons at the Guggenheim Museum designed by architect Frank Gehry, Bilbao, province of Biscay, Basque Country, Spain, Europe

Auditorio de Tenerife, Santa Cruz, Tenerife, Canary Islands, Spain, Atlantic, Europe

Moesgaard Museum (MOMU), Henning Larsen Architects, museum of archaeology and ethnography, Hojbjerg, suburb of Aarhus, Jutland Peninsula, Denmark, Europe

Tall Tree and the Eye, a sculpture by Anish Kapoor, outside the Guggenheim Museum, Bilbao, Basque Country, Spain, Europe

Apartments by Frank Gehry, Prospect Place, Battersea, London, England, United Kingdom, Europe

Tramway in front of the Ilot Gruner, architect Manuelle Gautrand, Administration building, Saint-Etienne, Loire department, Auvergne-Rhone-Alpes region, France, Europe

Nasrid Palaces, Islamic and Mudejar architecture, Alhambra, UNESCO, Granada, Andalusia, Spain