The BT Tower is a tall cylindrical building in London, United Kingdom, located at 60 Cleveland Street, Fitzrovia W1T 4JZ, London Borough of Camden. It has been previously known as the Post Office Tower, the London Telecom Tower and the British Telecom Tower. The tower was topped out on 15 July 1964 and officially opened by Prime Minister Harold Wilson on 8 October 1965. Read more