Hohenzollern Bridge over the River Rhine and Cathedral, UNESCO World Heritage Site, Cologne, North Rhine Westphalia, Germany, Europe

Hohenzollern Bridge over the River Rhine and Cathedral, Cologne, North Rhine Westphalia, Germany, Europe

Hohenzollern Bridge over the River Rhine, Cologne, North Rhine Westphalia, Germany, Europe

Hohenzollern Bridge over the River Rhine and Cathedral, Cologne, North Rhine Westphalia, Germany, Europe

Hohenzollern Bridge over the River Rhine and Cathedral, UNESCO World Heritage Site, Cologne, North Rhine Westphalia, Germany, Europe

The Zubizuri, tied arch footbridge across the Nervion River, designed by architect Santiago Calatrava, with the Isozaki Atea twin towers designed by Japanese architect Arata Isozaki in the background, Bilbao, province of Biscay, Basque Country, Spain,Europe