30 St Mary Axe to flight paths for both London City and London Heathrow airports; the revised plan for a lower tower was accepted. The tower's topmost panoramic dome, known as the "lens", recalls the iconic glass dome that covered part of the ground floor of the Baltic Exchange and much of which is now displayed at the National Maritime Museum. "The Gherkin" nickname was applied to the current building at least as long ago as 1999, referring to that plan's highly unorthodox layout and appearance. On 23 August 2000, Deputy Prime Minister John Prescott granted planning permission to construct a building much larger
St Mary Axe St Mary Axe St Mary Axe was a medieval parish in the City of London whose name survives as that of the street which formerly occupied it. The Church of St Mary Axe was demolished in 1561 and its parish united with that of St Andrew Undershaft, which is situated on the corner of St Mary Axe and Leadenhall Street. The site of the former church is now occupied by Fitzwilliam House, a fact acknowledged by a blue plaque on the building's façade. Nearby parishes include the medieval Great St Helen's (1210) and St Ethelburga (14th century). The street name