A discovery underneath the basement of an office block has been described as one of the most important pieces of Roman history unearthed in the city of London.
Archaeologists have found a substantial piece of the ancient city's first basilica - a 2,000 year old public building where major political, economic and administrative decisions were made.
The excavation has so far revealed sections of stone wall that formed the base of the basilica, which would have been two-and-a-half storeys high.
The site, which will eventually be opened to the public, sheds light on the city's beginnings.
"This is so significant - this is the heart of Roman London," said Sophie Jackson, from the Museum of London Archaeology (Mola), who revealed the new find exclusively to BBC News.
"This building will tell us so much about the origins of London, why London grew and why it was chosen as the capital of Britain. It's just amazing."