St Stephen's Tower, London
St Stephen's Tower (GPS: 51.49948, -0.12513), also called Central Tower, is a 91 metre (300ft) tower in the Palace of Westminster. This makes it the shortest of the three main towers of the Palace. Unlike the other towers, St Stephen's Tower has a spire. The Tower is directly above the Central Lobby, ans is octagonal in shape.
The original purpose of St Stephen's Tower was as a high-level air intake. Between Westminster Hall and the Old Palace Yard, there is a small tower that contains the main entrance to the House of Common. It is known as St Stephen's entrance.
St Stephen's Tower is 
on the Map of Historic Buildings of London
List of Historic Buildings of London
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