Archeologists exploring the site of a planned 32-story office tower announced Thursday that they have unearthed remains of a Roman basilica that once stood at the heart of the city known as Londinium.

The remains of an ancient basilica that would have formed the heart of Roman London have been uncovered during building work in the center of the British capital.

Experts are surprised at how much of the basilica, or town hall, survived. The ancient building was part of Roman London’s political and commercial center.

Archaeologists have found “the heart of Roman London,” the remains of the city’s first basilica, underneath an office building.

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.

Archaeologists have uncovered a 2,000-year-old Roman basilica beneath a London office block, revealing the political heart of Londinium.

Archaeological dig finds stone foundations of an old Roman landmark.

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Archaeologists exploring the site of a planned 32-story office tower announced Thursday that they have unearthed the remains of a Roman basilica that once stood at the heart of the city known as Londinium.