The Global Warming Swimming Pool: Swimming Above a "Submerged City"

This eye-catching swimming pool in Mumbai, India, has been built to raise awareness about the threat of sea level rises as a result of global warming.

It was constructed by attaching a giant aerial photograph of the New York City skyline to the floor of the pool.

The idea was conceived by advertising agency Ogilvy & Mather, who were commissioned by banking giant HSBC to promote its £50million project tackling climate change.