Ireland, North, Derry City, The Peace Bridge acrosss the River Foyle.

Ireland, North, Derry City, The Peace Bridge acrosss the River Foyle.

Ireland, North, Derry City, Pedestrian crossing decorated with rainbow colours.

CHINA, Guangxi, Rongshui, Wooden footbridge crossing river with pedestrians and cyclist crossing at the far end.

Sri Lanka, Kandy, Man taking part in fire walking ceremony crossing hot coals barefoot carrying lighted torches.

England, London, City workers crossing the Millennium Bridge with the dome of St Paul's Cathedral in the background.

England, London, City workers crossing the Millennium Bridge towards St Paul's Cathedral.

England, London, Tower Bridge viewed from the south bank of the River Thames with an iconic red London bus crossing the bridge.

England, London, Tower Bridge viewed from the south bank of the River Thames with an iconic red London bus crossing the bridge.

England, London, Tower Bridge in evening light viewed from the south bank of the River Thames with an iconic red London bus crossing the bridge.

England, London, Westminster, Wonderpass brightly decorated pedestrian underpass on the junction of Marylebone Road and Baker Street.

England, London, Westminster, Wonderpass brightly decorated pedestrian underpass on the junction of Marylebone Road and Baker Street.