The viewing platforms on the Shard will be open to the public from the 1st of February 2013.
Although visitors can't go right to the top of the 310m building, they can reach the 72nd floor, which stands at 244m.
More top news
Donald Trump is to visit the UK on July 13 and hold bilateral talks with Theresa May, Britain's ambassador to the US has said.
The Football Association has announced it has received an offer to buy Wembley Stadium.
The most hotly-tipped date is July 13, following the Nato summit which the president is due to attend in Brussels on the previous days.