Tower Hill is the area surrounding the Tower of London in the London Borough of Tower Hamlets. It is infamous for the public execution of high status prisoners from the late 14th to the mid 18th century. The execution site on the higher ground north-west of the Tower of London moat is now occupied by Trinity Square Gardens.
Tower Hill rises from the north bank of the River Thames to reach a maximum height of 14.5 metres (48 ft) Ordnance Datum.[1] The land was historically part of the Liberties of the Tower of London, an area the Tower authorities controlled to keep clear of any development which would reduce the defensibility of the Tower. Building has encroached to a degree, but a legacy of this control is that much of the hill is still open. The hill includes land on either side of the London Wall, a large remnant of which is visible.[2]