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Trans Alaska oil pipeline across taiga through Alaskan Range carried on insulated ground piles, Alaska, USA
Close-up of the clock face of Big Ben, Houses of Parliament, Westminster, London, England, United Kingdom, Europe
Hemisferic (Planetarium) and Principe Felipe Science Museum at dusk, architect Santiago Calatrava, City of Arts and Sciences, Valencia, Spain, Europe
Palau de les Arts, Ciutat de les Arts i de les Ciencies, City of Arts and Sciences, museum, evening, Valencia, Mediterranean, Costa del Azahar, Spain, Europe
Heliostats reflect sunrays to receiver tower, solar energy scientific research centre, AORA Tulip System, Tabernas, Almeria, Andalusia, Spain, Europe
Solar panel array in field in countryside providing domestic energy near village of Rogil, Algarve district, Portugal, Europe
Curved concave reflector panels desalinisation plant at the solar energy scientific research centre, Tabernas, Almeria, Andalusia, Spain, Europe
Heliostats reflecting sun rays, solar energy scientific research centre, AORA Tulip System, Tabernas, Almeria, Andalusia, Spain, Europe
Desalinisation plant at the solar energy scientific research centre, Tabernas, Almeria, Andalusia, Spain, Europe
Heliostats at the solar energy scientific research centre, Tabernas, Almeria, Andalusia, Spain, Europe
Heliostats and central receiver CESA-1 Tower at solar energy scientific research centre, Tabernas, Almeria, Andalusia, Spain, Europe
Masdar City, a carbon neutral building project relying on solar energy and other renewable power sources. Abu Dhabi, United Arab Emirates, Middle East
Curved concave reflector panels desalinisation plant at the solar energy scientific research centre, Tabernas, Almeria, Andalusia, Spain, Europe
Array of solar panels on a bright sunny day, Sierra Alhamilla, near Nijar, Almeria, Andalusia, Spain, Europe
Masdar City, a carbon neutral building project relying on solar energy and other renewable power sources, Abu Dhabi, United Arab Emirates, Middle East
Masdar City, a carbon neutral building project relying on solar energy and other renewable power sources, Abu Dhabi, United Arab Emirates, Middle East
Cardboard Cathedral, the post-earthquake temporary replacement to the city's Gothic-revival cathedral opened in 2012, Christchurch, Canterbury, South Island, New Zealand, Pacific
Oil pumps (nodding donkeys) for sale at oilfield supply merchants, Shelby, Montana, United States of America, North America
The Burj Khalifa, completed in 2010, the tallest man made structure in the world, Dubai, United Arab Emirates, Middle East
Pozdrav Zuncu (Sun Salutation) monument by architect Nikola Basic, Zadar, Zadar county, Dalmatia region, Croatia, Europe
Pozdrav Zuncu (Sun Salutation) monument by architect Nikola Basic, Zadar, Zadar county, Dalmatia region, Croatia, Europe
The Oriental Pearl Tower illuminated at night in the Lujiazui financial district of Pudong, Shanghai, China, Asia
Natural forest shelter in autumnal woodland, Lake District National Park, Cumbria, England, United Kingdom, Europe
View from the Oppidum d'Enserune of the Etang de Montady near Beziers, Languedoc-Roussillon, France, Europe
Palau de les Arts, Ciutat de les Arts i de les Ciencies, City of Arts and Sciences, museum, evening, Valencia, Mediterranean, Costa del Azahar, Spain, Europe
Pozdrav Zuncu (Sun Salutation) monument by architect Nikola Basic, Zadar, Zadar county, Dalmatia region, Croatia, Europe
Palau de les Arts, Ciutat de les Arts i de les Ciencies, City of Arts and Sciences, Valencia, Costa del Azahar, Spain, Europe
L'Hemisferic, The Hemisphere, IMAX, Cinema, Ciutat de les Arts i de les Ciencies, City of Arts and Sciences, Valencia, Mediterranean, Costa del Azahar, Spain, Europe