Tower Hill Postern, Medieval city gate in Tower Hill, England
Tower Hill Postern is a medieval city gate located where the London Wall meets the Tower of London's moat. The excavated foundations of its southern tower are visible inside a pedestrian underpass connecting the Tower of London to Tower Hill station.
The gate was constructed between 1297 and 1308 under King Edward I as part of the Tower's defenses. Its southern tower partially collapsed into the moat in 1431, leaving it in its present state.
This gate marked the boundary of Tower Liberty, a district that still operates under separate governance from the City of London. The division remains visible today in how the area is organized and the boundaries you can see when walking around.
The best way to view the remains is through the pedestrian underpass beneath Tower Hill, where the ruins are displayed in a well-lit underground area. Wear sturdy shoes as the ground can be uneven in places.
The builders combined two types of stone: local Kentish stone and imported Caen stone from Normandy. This mixed construction reveals the medieval builders' ability to source quality materials from distant regions.
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