Thorney Island (London)
Thorney Island was the eyot (or small island) on the Thames, upstream of mediaeval London, where Westminster Abbey and the Palace of Westminster (commonly known today as the Houses of Parliament) were built. It was formed by rivulets of the River Tyburn, which entered the Thames near the lowest point where it could be forded from the north bank at low tide. Its name came from Anglo-Saxon Þorn-īeg = "Thorn Island".
Despite hardships and Viking raids over the next 300 years, the monks tamed the thorny vegetation, until by the time of Edward the Confessor it was "A delightful place, surrounded by fertile land and green fields". The Abbey's College Garden remains delightful, a thousand years later, the oldest garden in England.
The level of the land has risen, the rivulets have been built over, and the Thames has been embanked. There is now no sign of Thorney Island. The name is kept only by Thorney Street, at the back of the MI5 Security Service building; but a local heritage organisation established by June Stubbs in 1976 took the name The Thorney Island Society.