Passengers at Hong Kong International Airport, China

Aerial image of rain ponds in between sand dunes, Lencois Maranhenses, Maranhao, Brazil, South America

Aerial image of rain ponds in between sand dunes, Lencois Maranhenses, Maranhao, Brazil, South America

A woman takes a selfie at U Min Thonze Pagoda on Sagaing Hill in Myanmar

Vintage retro effect filtered hipster style image of Indian landmark Gadi Sagar, artificial lake view through arch. Jaisalmer, Rajasthan, India, Asia

Facade, modern office building Cologne Oval Offices, Gustav-Heinemann-Ufer, Bayenthal district, Cologne, North Rhine-Westphalia, Germany, Europe

Tips of wooden barges in the water, using the example of punting barges on the banks of the Neckar in Tuebingen, Baden-Wuerttemberg, Germany, symbolic image, Europe

Finely structured dunes in the Wahiba Sands desert in Oman, Middle East

Detail, shopping centre Stary Browar in a former brewery, Poznan, Wielkopolska, Poland, Europe

Cologne Oval Offices, modern office building, Gustav-Heinemann-Ufer, Cologne-Bayenthal quarter, Cologne, North Rhine-Westfalia, Germany, Europe

Facade, modern office building Cologne Oval Offices, Gustav-Heinemann-Ufer, Bayenthal district, Cologne, North Rhine-Westphalia, Germany, Europe

University library in Heidelberg, interior view, art nouveau, staircase, circular stairs, Heidelberg, Baden-Wuerttemberg, Germany, Europe

Detail, shopping centre Stary Browar in a former brewery, Poznan, Wielkopolska, Poland, Europe

Curved wooden ceiling, Bavarian National Museum, Prinzregentenstrasse 3, Munich, Bavaria, Germany, Europe

Night Image Of Seattle Cityscape And I-5 On A Cloudy Night, Seattle, Washington, United States Of America