Tower 42 is the tallest skyscraper in the City of London and the fifth tallest in London as a whole. It was originally built for the National Westminster Bank (NatWest), hence its former name, the NatWest Tower.
Seen from above, the tower closely resembles the NatWest logo (three chevrons in a hexagonal arrangement). The tower, designed by Richard Seifert, is located at 25 Old Broad Street. It was built by John Mowlem & Co between 1971 and 1979, and opened in 1980, costing a total of £72 million (approximately £222 million today).
It is 183 metres (600 ft) high, which made it the tallest building in the UK until the topping-out of One Canada Square in Docklands in 1990.