 
 <translate> The relevant sentence in the passage is: With 41 stories it is 180 metres (591 ft) 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. The answer is 41. <ibo> Nkebi ahịrịokwu dị mkpa n'akụkụ ahụ bụ: Site na akụkọ 41 ọ dị 180 mita (591 ft) n'ịdị elu ma guzo na saịtị ndị mbụ nke Baltic Exchange na Chamber of Shipping, nke mebiri emebi nke ukwuu na 1992 site na mgbawa nke bọmbụ nke ndị IRA na-adịru nwa oge na St Mary Axe, n'okporo ámá nke ụlọ elu ahụ si nweta aha ya. Azịza ya bụ 41. 