Volcano El Misti guarding the white city of Arequipa, Arequipa Region, Peru

View of Valparaiso and Lutheran Church of the Holy Cross from Acensor Reina Victoria at Paseo Dimalow, UNESCO, Valparaiso, Valparaiso Region, Chile

View over the Unesco World Heritage site, the Kasbah, historic district of Algiers, Algeria, Africa

Skyline with Commerzbank Tower, European Central Bank, ECB, Hessische Landesbank, Cathedral, Opera Tower and Deutsche Bank buildings behind Alte Bruecke bridge, Frankfurt, Hesse, Germany, Europe

View over the historic town centre and the rebuilt Shigatse Dzong fortress, Shigatse, Tibet, China, Asia

Luxembourg, Luxembourg City, Saint Esprit Plateau, Building in The Judiciary City- a site that houses a number of courts and legal offices

Kö-Bogen office and retail complex by architect Daniel Libeskind, Dusseldorf, North Rhine-Westphalia, Germany, Europe

Views of the city skyline at dusk and lit skyscrapers, city centre, Frankfurt am Main, Hesse, Germany, Europe

Texas, San Antonio, Art Gallery, La Villita Historic Arts Village, Nationa Registry Of Historic Districts

Old town in Dubai, United Arab Emirates, Middle East

Reflection of the Rocky Mountains in Herbert Lake, Banff National Park, Alberta, Canada

Lake near Bengtsfors, Sweden

Clock Tower in the evening, old town, UNESCO World Heritage Site, Sighisoara, Transylvania, Romania

House of the deer, old town, UNESCO World Heritage Site, Sighisoara, Transylvania, Romania

Castle ruins, Three Castle Head, Mizen Head Peninsula, West Cork, Ireland

Taverns in front of Thalassini Gate, Rhodes Town, Rhodes, Greece

Stone crucifix in the vineyards of Orschwihr, Alsace, France

Square in the historic town centre of Rovinj, Croatia

Square in the historic town centre of Rovinj, Croatia

Matterhorn reflection in Riffelsee, Zermatt, Wallis, Switzerland

Harvesting grapes near Oberloiben, Wachau, Waldviertel, Forest Quarter, Lower Austria, Austria

On Bachalpsee Lake, overlooking the Swiss Alps with Mt Schreckhorn and Mt Finsteraarhorn, Grindelwald, Bernese Oberland, Switzerland

Glottertal, Black Forest, Baden-Wuerttemberg, Germany

Vineyards near Schelingen, Kaiserstuhl range, Baden-Wuerttemberg, Germany

Old Town and Schwabentor tower, Freiburg im Breisgau, Baden-Wuerttemberg, Germany

Aerial view of old town hall, Main river, Bamberg, Upper Franconia, Bavaria, Germany

Aerial view of Bamberg Cathedral and Neue Residenz castle, Bamberg, Upper Franconia, Bavaria, Germany

Aerial shot, Margarethenhoehe residential estate, Essen, Ruhr district, North Rhine-Westphalia, Germany

Aerial view of National Park Mueritz, Rechlin, Mecklenburg-Western Pomerania, Germany

Aerial view of boat houses, Roebel, Mueritz, Mecklenburg-Western Pomerania, Germany

Dusk in Selva di Cadore, Santa Fosca, Pescul, Dolomites, Italy. Pelmo mount in the background.

Turkey, Istanbul, View over Beyoglu and Sultanahmet Districts, The Golden Horn and Bosphorus

Turkey, Istanbul, View over Beyoglu and Sultanahmet Districts, The Golden Horn and Bosphorus

Empty street amidst buildings in Historic Center of Cesky Krumlov early in the morning, UNESCO, Cesky Krumlov, South Bohemian Region, Czech Republic

Illuminated Casa Cuatro Vientos restaurant at Paseo 21 de Mayo by light trails on street in Valparaiso, UNESCO, Valparaiso Region, Chile

The Old Granny street art by artist Ella et Pitr at Cerro Concepcion in Valparaiso, UNESCO, Valparaiso Region, Chile

Famous blue Casa Cuatro Vientos restaurant at Paseo 21 de Mayo, UNESCO, Valparaiso, Valparaiso Region, Chile

Narrow, blue-painted alley with steps and plants in the Medina, old town of Chefchaouen, Morocco, Africa

Panoramic view of Zurich on the Limmat river, Zurich, Switzerland, Europe

View over the Unesco World Heritage site, the Kasbah, historic district of Algiers, Algeria, Africa

View over the Unesco World Heritage site, the Kasbah, historic district of Algiers, Algeria, Africa

Russian district of Harbin, Heilongjiang province, China, Asia

Cathedral of Santiago de Cuba, as seen from the terrace of the Casa Granda Hotel, Parque Cespedes park, Santiago de Cuba, historic district, Cuba, Caribbean, Central America

Historic town centre of Idstein, Koenig-Adolf-Platz square with the Killingerhaus building, German Half-Timbered House Road, Rheingau-Taunus district, Hesse, Germany, Europe

Anosy Lake, behind the historic district of Antananarivo, capital of Madagascar, with the Rova of Antananarivo, a royal palace complex, Madagascar, Africa

Historic district with Torre Tavira, Cadiz, Costa de la Luz, Andalusia, Spain, Europe

Leie River, view of the historic district, the former post office on the right, Ghent, East Flanders, Belgium, Europe

View of Mogador, historic district of Essaouira, Unesco World Heritage Site, Morocco, North Africa, Africa

Aerial view of the Financial District with Transamerica Pyramid as seen from the north, San Francisco, San Francisco Bay Area, California, USA, North America

Aerial view of the Financial District with Transamerica Pyramid as seen from the north, San Francisco, San Francisco Bay Area, California, USA, North America

Aerial view, Transamerica Pyramid, Financial District, Downtown, San Francisco, San Francisco Bay Area, California, USA, North America

Aerial view, Transamerica Pyramid, View of the South of Market district SoMa, Financial District, Downtown, San Francisco, San Francisco Bay Area, California, USA, North America

Royal Palace, Hausmannsturm tower, Dresden, Saxony, Germany, Europe, PublicGround, Europe

Catholic Church of the Royal Court of Saxony, cathedral, Royal Palace with Hausmannturm tower, Theatreplatz square, Dresden, Saxony, Germany, Europe, PublicGround, Europe

View of historic centre of Rothenburg ob der Tauber as seen from Burggarten, Bavaria, Germany, Europe

St. Michaelis Church, Michel, harbour shore and "Blue Port" illuminations in Hamburg, Germany, Europe

Luxembourg, Luxembourg City, Saint Esprit Plateau, Building in The Judiciary City- a site that houses a number of courts and legal offices

Luxembourg, Luxembourg City, View over the Grund - the lower town towards Saint Esprit Plateau and the city beyond

Skyline with Eschenheimer Turm city gate, Frankfurt, Hesse, Germany, Europe

Hauptwache, Or Main Guard, with the skyline, city centre, Frankfurt am Main, Hesse, Germany, Europe

Views of the city skyline at dusk and lit skyscrapers, city centre, Frankfurt am Main, Hesse, Germany, Europe

Texas, San Antonio, Art Gallery, La Villita Historic Arts Village, Front Door Of Restored Pallisado House, 1852, Nationa Registry Of Historic Districts