30 St Mary Axe is a commercial skyscraper in London's primary financial district, the City of London. It was completed in December 2003 and opened in April 2004. With 41 storeys, it is 180 metres tall and stands on the former sites of the Baltic Exchange and Chamber of Shipping, which were extensively damaged in 1992 by the explosion of a bomb placed by the Provisional IRA in St Mary Axe, the street from which the tower takes its name.
After plans to build the 92-storey Millennium Tower were dropped, 30 St Mary Axe was designed by Norman Foster and Arup Group and it was erected by Skanska, with construction commencing in 2001.
Only the plaza and the garden are open to public.
The plaza and the garden are free to enter.
Official Website http://www.30stmaryaxe.com/
More information http://www.aviewoncities.com/london/gherkin.htm
Address 30 Saint Mary Axe, EC3A 8EP, London
Coordinates 51°30'52.095" N -0°4'49.211" E