Step Change 2012: The Gherkin Challenge
Time Out says
A charity fundraiser for the NSPCC where participants are challenged to run up the 38 flights of stairs of the Gherkin. Take part as an individual, a team or a family, or cheat and buy a lift pass and go straight to the top. There will be a glass of Champagne waiting for you at the fortieth floor bar, along with panoramic views of the city.