26 October 2012
Last updated at 17:18
Details about the main viewing platform on level 69 of The Shard - Western Europe's tallest building - have been revealed. At 236.5m (775ft) above south-east London, it will give visitors a 360 degree view for up to 40 miles (64km) when it opens on 1 February, 2013.
Tickets will provide access to levels 68, 69 and 72, which is partially outside. The viewing platforms will be open 09:00 to 22:00 seven days a week.
Architect William Matthews, who has spent 12 years working on The Shard, said unlike a building in a city like New York, his is more than "another tree in a forest".
The view from The Shard is almost twice as high as any other viewing point in the city.
Architect Mr Matthews said that although people might believe they would see less in the evening there was a "great view" after dark.
Digital telescopes with large touch screens provide information about 200 places of interest and offer alternative day and night-time views. They are being used for the first time in Europe, said The View from The Shard.
Loos with a view: The View from The Shard offers perhaps the most dazzling vantage point of London from a urinal, with full-length windows.
Anders Nyberg, chief executive of The View from the Shard, said on days when there is "zero visibility" and the ground cannot be seen, visitors would be offered a ticket for another time. He said: "There are four or five days a year where there is zero visibility."