Roman Empire Historical Facts
A Sail Above the Sand: Did the Colosseum Really Have a Retractable Roof?
Imagine 50,000 Romans seated in the blazing summer sun, cheering gladiators while the midday heat bears down on the mighty Colosseum. Yet, their faces are shaded, cooled by a system so advanced that even modern engineers marvel at its ingenuity. How did the Romans achieve this?
