The visible remains of an amphitheatre constructed during Roman London lies beneath the Guildhall Art Gallery complex in the City of London.
Some of the remains of this are displayed in situ in a room in the basement of the art gallery.
Discovered in 1988, the site is now a scheduled monument.

London's first Roman amphitheatre was built in AD70 from wood but was renovated in the early 2nd century with tiled entrances and rag-stone walls.
The amphitheatre was used for various public events such as gladiator games, entertaining soldiers and the public with animal fighting and public execution of criminals, as well as religious activities.
When the ancient Romans left in the 4th century the amphitheatre lay derelict for hundreds of years.
In the 11th century the area was reoccupied and by the 12th century the first Guildhall was built next to it.
The visible remains of an amphitheatre constructed during Roman London lies beneath the Guildhall Art Gallery complex in the City of London. Some of the remains of this are displayed in situ in a room in the basement of the art gallery. Discovered in 1988, the site is now a scheduled monument.
London's first Roman amphitheatre was built in AD70 from wood but was renovated in the early 2nd century with tiled entrances and rag-stone walls. The amphitheatre was used for various public events such as gladiator games, entertaining soldiers and the public with animal fighting and public execution of criminals, as well as religious activities. When the ancient Romans left in the 4th century the amphitheatre lay derelict for hundreds of years. In the 11th century the area was reoccupied and by the 12th century the first Guildhall was built next to it.
Amphitheatre (London)