Mud and burnt Roman bricks from Romula

Why do ancient Roman and medieval buildings eventually get buried several meters under street level, and why doesn't this happen to modern cities? - Quora

Roman brick hi-res stock photography and images - Alamy

Experimental study on the properties of modern blue clay brick for Kaifeng People's Conference Hall

Two Roman Glass Furnaces Discovered at Reşca-Romula (Romania)

PDF) The Vitruvian legacy: Mortars and binders before and after the Roman world

Why didn't the Romans use clay bricks for their roads, instead of rocks, which are not smooth and are harder to shape? - Quora

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Mud and burnt Roman bricks from Romula

An Astonishing Ancient Roman Site Has Been Found In The Heart Of A Major World City