An El train on the Elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

An El train on the Elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

Wells Street Bridge, Chicago, Illinois, United States of America, North America

Traffic crossing Wells Street Bridge over the Chicago River, Chicago, Illinois, United States of America, North America

An El train on the Elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

An El train on the elevated train system crossing Wells Street Bridge, Chicago, Illinois, United States of America, North America

Chicago, Illinois, United States of America, North America

Bridge with ornate lamps leading to Haus der Seefahrt (House of Seafaring) at left beside historic timber-framed merchant houses on the Nikolaifleet in the historic centre of Hamburg, Germany

Niagara Falls with a view of the Americans side from Ontario, Canada

Old wooden houses, canal and bridge, historic centre of Lijiang, UNESCO World Heritage Site, Yunnan Province, People's Republic of China, Asia

Golden Gate Bridge at dawn, San Francisco, California, USA

Golden Gate Bridge at dusk, San Francisco, California, United States of America

Illuminated Golden Gate Bridge at twilight, San Francisco Bay, California, United States of America

Illuminated Theodor Heuss Bridge and waterfront skyline, Germany, Rhineland-Palatinate, Mainz, Theodor Heuss Bridge,Christuskirche