such as the barrel vaults with coffered ceilings—a long arch with a reinforcing square mesh of ribs on the inside—and cross ...

This magnificent centrepiece of the Roman Baths is a pool, lined with 45 sheets of lead, and filled with hot spa water. It once stood in an enormous barrel-vaulted hall that rose to a height of 40 ...

This Roman wooden barrel was found at Bar Hill Roman Fort, Strathclyde, Scotland and was picked by Christina Gilfedder, second year student at the University of Glasgow (Single Honours Archaeology).