Another rare chance to ascend the BT Tower has just been announced. And this time round, you don't even have to climb the stairs.
The opportunity, on 26 April 2012, comes courtesy of two charities: the Ellen MacArthur Cancer Trust and Barretstown. Both work to improve the lives of young people who've suffered serious illness such as cancer, through confidence-building adventures and recreational camps.
A ticket to the event costs £50, which will be split between the charities. As well as helping support the causes, you'll also get to ascend by lift to the 34th floor and enjoy the panoramic views of London with a glass of bubbly.