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

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.

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,