Picture Gallery: Gladiators at the ready

The public is getting its first glimpse of a Roman amphitheatre in central London which was last uncovered 2,000 years ago.

The site was first discovered in 1988 in Guildhall Yard and its significance will be revealed on Tuesday at its official unveiling.

Here is a snapshot of the work involved to uncover London's "hidden treasure".

Work begins in the capital's Guildhall Yard in the heart of medieval London

The Roman Amphitheatre: The steel girders are needed to enable deep excavation

The work has helped make London one of the best understood of Roman towns

London was one of the Roman Empire's most significant settlements

Vistors get one of the first glimpses of the ancient amphitheatre after 2,000 years under cover