The Shard is an 87 storey skyscraper built on the south bank of the River Thames close to London Bridge station and Guys and St Thomas hospital. When it was completed in March 2012, it was, at 306 metres, the tallest building in the European Union.
The tower contains a mix of offices, restaurants, a hotel and private apartments. Three restaurants occupy floors 31 to 33. The Shangri La Hotel occupies floors 34 to 52. Floors 53 to 65 are private residences.
There is a viewing platform on floors 68 to 72 which is open to the public. This area provides 360 degree panoramic views of London and the surrounding areas. On a clear day you can see forty miles.
There's an argument to say go here first so that you can spot things you would like to visit. Equally it might be sensible to leave your visit until later so that you have a better idea what you are looking at.