Centre Point is a substantial concrete and glass office building in central London, England, occupying 101–103 New Oxford Street, WC1, close to St Giles Circus and almost directly above Tottenham Court Road tube station. The site was once occupied by a gallows. One of the first skyscrapers in London, it is now the city's joint 27th tallest building. The concrete units were made by Portcrete Ltd. at Portland, Dorset, using finely crushed Portland Stone, and transported to London by lorries. Since 1995 it has been a grade II listed building. An aggressive use of the "flashy and international style of crystalline concrete" that Richard Seifert developed with his partner H.G. Marsh, the 380-ft tower stood empty for five years after its completion in 1967.
More information on the Wikipedia page