Hypocaust at the ruins of the Roman Baths of Berytus in Beirut, Lebanon. Located under the floor, the heating system (hypocaust) allowed the air, warmed by wood fires in adjacent vaults, to circulate between pillars of terracotta disks that heated the marble floor [1469×2412]

Hypocaust at the ruins of the Roman Baths of Berytus in Beirut, Lebanon. Located under the floor, the heating system (hypocaust) allowed the air, warmed by wood fires in adjacent vaults, to circulate between pillars of terracotta disks that heated the marble floor [1469×2412]

by Fuckoff555