British collective Brick to the Past built a historical LEGO display that’s probably one of the largest ever made. It’s a recreation of Hadrian’s famous wall at Rome’s northern frontier.
Rome was the first city on the planet to have an extensive and efficient municipal water system, thanks to the empire's ambitious aqueduct system that's still found throughout Europe. But that infrastructure was also pumping ancient Romans with lead—up to 100 times the amount of lead found in local spring water.
Nobody is entirely sure who first had the privilege of sitting on a toilet. Evidence of advanced plumbing systems in the ancient world abounds, but it's a strange, meandering path from antiquity to checking your inbox on the can.
This could very well be the world's first Swiss Army Knife. Bearing a striking resemblance to modern multi-tools, it has at least six distinct functions and originates from the Roman Empire circa 200 A.D.