30 St Mary Axe nearly oblivious to the tower's existence until directly underneath it. The building was constructed by Skanska, completed in December 2003 and opened on 28 April 2004. The primary occupant of the building is Swiss Re, a global reinsurance company, which had the building commissioned as the head office for its UK operation. The tower is thus sometimes known as the Swiss Re Building, although this name has never been official and has more recently fallen out of favour, since the company's main headquarters is in Zurich and the Gherkin name has become more popular. The building uses energy-saving methods which
St Mary Moorfields St Mary Moorfields St Mary Moorfields is a Roman Catholic church in Eldon Street near Moorgate, on a site previously known as Moorfields. It is the only Catholic church in the City of London. Prior to 1994, the church was designated as being in the Borough of Hackney, such that there were no Catholic churches in the City. The present building, located at 4–5 Eldon Street, was opened in 1903, after the previous building had been demolished in 1899. However, the foundation had a long history prior to this. A chapel was opened in 1686, but was suspended in 1689,