Earlier this year, archeologist found the largest Roman mosaic floor ever uncovered in London. It’s in the Southwark area about a couple blocks from the Shard skyscraper.

Smithsonian Magazine states, “Red, white and black stones make up the tessellated floor. Its pattern features large lotus flowers, colorful blooms and intricate twists of closed loops known as ‘Solomon’s knots.'”

Experts believe the floor was created in the late 2nd or early 3rd century.