A closer look

Even while fighting off screaming Picts at the miserable, freezing edge of the known world, Roman legionaries absolutely refused to skip spa day. At the Vindolanda fort near Hadrian's Wall, engineers built massive, hypocaust-heated bath complexes right in the middle of a hostile military frontier. Soldiers would gamble, gossip, scrub themselves with oil, and sweat out the horrific British weather. It was a calculated psychological tool by the Empire: a steamy, naked reminder that Rome's civilizing comforts followed them into the absolute wilderness.