832-383758 - Solar installation technician checking solar panels with his laptop computer

832-383759 - Solar installation technician checking solar panels with a measuring device

832-383761 - Solar installation technician studying a plan

832-383774 - Technician, mechanic with orange helmet mounting a refrigeration line bracket, Austria, Europe

832-383775 - Technician, mechanic with orange helmet mounting a refrigeration line bracket, Austria, Europe

1178-13070 - Construction work on pipeline

1178-11717 - Construction worker installing solar panel on roof

1178-11711 - Construction worker installing solar panel on roof

832-348910 - Abstract lighting installation titled "Luftschlangen" (Paper Streamers)

832-353924 - Sculpture Modern Book Printing, Berlin, Germany

832-320156 - "Totems" art installation by Basque artist Augustin Ibarrola, painted railway ties at the top of the Haniel spoil pile, Bottrop, North Rhine-Westphalia, Germany, Europe

832-315570 - "Totems, " installation art piece built from over 100 railroad ties by Basque artist Agustin Ibarrola on mining waste heaps near Bottrop, North Rhine-Westphalia, Germany, Europe

832-305114 - Potsdamer Platz, building with light installation, Berlin, Germany

832-277983 - Yayoi Kusama, dots obsession, Haus der Kunst, Munich, Bavaria, Germany

832-264231 - Homenatge a la Barceloneta (Homage an Barceloneta) sculpture by Rebecca Horn, German performance and installation artist, on Platja (Beach) de Sant Sebastia in Barcelona, Catalonia, Spain, Europe

832-249589 - Irrigation water viaduct lit up with the letters 'RhB' to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-249584 - Irrigation water viaduct lit up with the national flag motif to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-249583 - Irrigation water viaduct lit up with the national flag motif to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-249587 - Irrigation water viaduct lit up with the motif 'Viaduct' to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-249588 - Irrigation water viaduct lit up to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-249585 - Irrigation water viaduct lit up with a graphic motif to celebrate the acceptance of the "Rhaetische Bahn Railway in Albula/Bernina" as a UNESCO World Heritage Site, Filisur, Graubuenden, Switzerland, Europe

832-235669 - Geleucht light installation in the shape of a walk-in mine lamp on the heap Rheinpreussen, Moers, Ruhr area, North Rhine-Westphalia, Germany, Europe

832-205033 - Light installation 47, 16 degrees north by Peter Sandbichler, Sparkassenplatz Passage, Innsbruck, Tyrol, Austria, Europe

832-187132 - Rail trail from LEDs, artistic lighting installation, Museumsbahnsteig museum platform Oberhausen, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

832-186799 - Art installation by the Raumlaborberlin, Soap Opera, many hundreds illuminated balloons at a mine shaft, GlueckAuf2010 cultural festival at the start of the European Capital of Culture year, on the site of the Zeche Zollverein mine and coking plant, Essen

832-186800 - Art installation by the Raumlaborberlin, Soap Opera, many hundreds illuminated balloons at a mine shaft, GlueckAuf2010 cultural festival at the start of the European Capital of Culture year, on the site of the Zeche Zollverein mine and coking plant, Essen

832-186801 - Art installation by the Raumlaborberlin, Soap Opera, many hundreds illuminated balloons at a mine shaft, GlueckAuf2010 cultural festival at the start of the European Capital of Culture year, on the site of the Zeche Zollverein mine and coking plant, Essen

832-186803 - Art installation by the Raumlaborberlin, Soap Opera, many hundreds illuminated balloons at a mine shaft, GlueckAuf2010 cultural festival at the start of the European Capital of Culture year, on the site of the Zeche Zollverein mine and coking plant, Essen

832-186804 - Art installation by the Raumlaborberlin, Soap Opera, many hundreds illuminated balloons at a mine shaft, GlueckAuf2010 cultural festival at the start of the European Capital of Culture year, on the site of the Zeche Zollverein mine and coking plant, Essen

832-164531 - Neue Nationalgalerie national art museum by Mies van der Rohe with sculptures "The Archer" by Henry Moore, "Broken Obelisk" by Barnett Newman in the rear middle and a light installation by Jenny Holzer, Schoeneberg district, Berlin, Germany, Europe

832-154558 - Buddha light installation in Cortili dell'arte 2010, Villaricca, Naples, Campania, Italy, Europe

832-154556 - Un'altra folla, Another crowd, installation by Michele Spinart, Cortili dell'arte 2010, Villaricca, Naples, Campania, Italy, Europe

832-154559 - Buddha light installation in Cortili dell'arte 2010, Villaricca, Naples, Campania, Italy, Europe

832-152246 - Dortmunder U landmark, U-Turm building of the former Union Brauerei brewery, future arts and culture center, video installation, Dortmund, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

832-149295 - Art, coloured neon installation in the stairwell of Schweinfurt Kunsthalle Art Gallery, Ruefferstrasse, Schweinfurt, Lower Franconia, Bavaria, Germany, Europe

832-145137 - Ruhr Atoll, European Capital of Culture 2010, art installation on the Baldeneysee Lake, Essen, North Rhine-Westphalia, Germany, Europe

832-145138 - Ruhr Atoll, European Capital of Culture 2010, art installation on the Baldeneysee Lake, Essen, North Rhine-Westphalia, Germany, Europe

832-145143 - Ruhr Atoll, European Capital of Culture 2010, art installation on the Baldeneysee Lake, Essen, North Rhine-Westphalia, Germany, Europe

832-135690 - Flossis installation by Rosalie in the Medienhafen media harbour, Duesseldorf, North Rhine-Westphalia, Germany, Europe

832-135681 - Varied colourful architecture with the Flossies installation by Rosalie in the foreground, Medienhafen media harbour, Duesseldorf, North Rhine-Westphalia, Germany, Europe

832-135679 - Varied colourful architecture with the Flossies installation by Rosalie in the foreground, Medienhafen media harbour, Duesseldorf, North Rhine-Westphalia, Germany, Europe

832-135678 - Varied colourful architecture with the Flossies installation by Rosalie in the foreground, Medienhafen media harbour, Duesseldorf, North Rhine-Westphalia, Germany, Europe

832-124631 - New National Gallery by the architect Mies van der Rohe with the sculpture Broken Obelisk by Barnett Newman and a light installation by Jenny Holzer, Berlin, Germany, Europe

832-125652 - Your natural yellow daylight, installation art by Olafur Eliasson, Kunstsammlung Nordrhein-Westfalen arts collection, K20 building, Duesseldorf, North Rhine-Westphalia, Germany, Europe

832-119647 - Installation of a solar collector, near Freiburg in Breisgau, Baden-Wuerttemberg, Germany, Europe

832-103216 - Construction of a large photovoltaic system on several rooftops, 16000 square metres, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

832-103214 - Construction of a large photovoltaic system on several rooftops, 16000 square metres, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

832-103217 - Construction of a large photovoltaic system on several rooftops, 16000 square metres, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

832-110552 - "Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

832-110550 - "Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

832-110645 - Installation of various cables in a building site, power lines and telecommunication cables, some in protective tubes, placed in the ground

832-110905 - Roped up roofers mounting large glass elemtens onto a dome roof, Berlin, Germany, Europe

832-110549 - "Totems" landmark art installation created from more than 100 processed railway sleepers by Basque painter and sculptor Agustin Ibarrola, situated on snow-covered mining waste heap Halde Haniel above the pit Prosper-Haniel in winter, Bottrop, North Rhine-

832-103215 - Construction of a large photovoltaic system on several rooftops, 16000 square metres, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

832-97684 - An art exhibit of thousands of shoes on the street by artist Tyree Guyton called "Street Folk" represents the issue of homelessness, part of Art X Detroit, a collection of performance art, music, and literary events held in Detroit, Michigan, USA, America

832-97687 - An art exhibit of thousands of shoes on the street by artist Tyree Guyton called "Street Folk" represents the issue of homelessness, part of Art X Detroit, a collection of performance art, music, and literary events held in Detroit, Michigan, USA, America

832-72586 - House made from colorful clothes, art installation by Loreta Visic-Washuis, CABANES 2011, Chateau de Seneffe castle, Seneffe, Hainaut province, Wallonia, Belgium, Europe

832-72587 - House made from colorful clothes, art installation by Loreta Visic-Washuis, CABANES 2011, Chateau de Seneffe castle, Seneffe, Hainaut province, Wallonia, Belgium, Europe

832-72588 - House made from colorful clothes, art installation by Loreta Visic-Washuis, CABANES 2011, Chateau de Seneffe castle, Seneffe, Hainaut province, Wallonia, Belgium, Europe

832-87837 - An art exhibit of thousands of shoes on the street by artist Tyree Guyton called "Street Folk" represents the issue of homelessness, part of Art X Detroit, a collection of performance art, music, and literary events held in Detroit, Michigan, USA, America

832-72585 - House made from colorful clothes, art installation by Loreta Visic-Washuis, CABANES 2011, Chateau de Seneffe castle, Seneffe, Hainaut province, Wallonia, Belgium, Europe

832-52569 - Flossis, art installation by artist Rosalie, Medienhafen media harbour, Duesseldorf, Rhineland, North Rhine-Westphalia, Germany, Europe, PublicGround

817-106039 - Dale Chihuly glass sculpture at the Fairchild Tropical Botanic Garden in Coral Gables, Florida

817-66253 - Quantum Field X3 exhibition, by Hiro Yamagata, Structure covered with holographic panels, Guggenheim Museum, Bilbao, Bizkaia, Euskadi.