Europe's tallest building is honoured with spectacular light display
The Shard - Europe's tallest building - has been officially unveiled in central London. Its tapered design and glass panelling have already made the skyscraper one of the city's most noticeable landmarks. A laser display on Thursday night commemorated the building's inauguration by the prime minister and minister of foreign affairs of Qatar, Hamad Bin Jassim Bin Jabr Al-Thani, and the Duke of York. Click through for more pictures.