The Thames Barrier is one of the largest movable flood barriers in the world.
The barrier spans 520 metres across the River Thames and it protects 125
square kilometres of central London from flooding caused by tidal surges.
7th July 2014, London, UK. Lars Bak of team Lotto-Belisol leads stage 3 of the Tour de France along Birdcage Walk in central London. The stage was eventually won by Marcel Kittel of team Giant Shimano.