It’s hard to believe that engineers were able to carry boats through the air more than 200 years ago at this Welsh aqueduct!
The city of Encarnacion in Paraguay moved up the hill, out of the path of a flooding river. But guess what? The flooding never came and it’s a ghost town!
The Romans didn’t just use armies to take over Europe. Constructions like this bridge helped them win the hearts and minds of the people they conquered.