The last of the three hills at least partly within the walls of the old City of London is Tower Hill, located at the City’s eastern end.

Famed as a site of public execution, Tower Hill – which rises to almost 14 metres above sea level – was traditionally where traitors who had been imprisoned in the nearby Tower of London met their final moments.

More than 120 people have been executed on the site, everyone from Sir Simon de Burley, tutor to King Richard II, in 1388, through to Thomas Cromwell in in 1540 and a soldier arrested during the Gordon Riots of 1780.

These days the gallows and scaffold – and the crowds which accompanied them – are long gone, marked by a stone set in the pavement at the western end of Trinity Square.

The hill, which is just to the north of the Tower of London and takes its name from it, was historically part of the tower liberties – meaning authorities could ensure nothing was developed on it which would affect the defences of the fortress.

It is the site of one of the remaining sections of the Roman and medieval wall which once surrounded the City of London (the hill is located on both sides of the wall).

A Tube station, Tower Hill, which opened in 1884 (it was originally named Mark Lane and the name changed to Tower Hill in 1946; it relocated to the current site in 1967).

The hill is also home to the Tower Hill Memorial – a pair of memorials dedicated to the mercantile marines who died in World War I and World War II – set inside the public park known as Trinity Square Gardens.