An elderly man carries a banner past a line of riot policemen during a protest to mark German Chancellor Angela Merkel's visit to Athens, Greece on Oct 9, 2012. [Photo/CFP]

Sunlight reflects from the side of the Shard skyscraper in London, on Sept 6, 2012. The Shard, across the River Thames from the City of London is western Europe's tallest building and has apartments on floors 53 to 65. [Photo/CFP]