Women and ancient Rome bought vials of sweat and dirt scraped from the skin of famous gladiators to use as a face cream

Contrary to the widespread belief, Roman gladiators rarely fought to the death

The Roman Pantheon remains the largest non-reinforced concrete dome in the world

The Circus Maximus, where Romans gathered to watch chariot races, could accommodate a whopping 250,000 people

The Romans once flooded the Colosseum with water to perform a mock sea battle

At the height of its power, the Roman Empire comprised about twelve percent of the world's population