When Emperor Hadrian destroyed the world’s longest bridge

On 103 A.D. emperor Trajan ordered to build a bridge over Danube river to be used for the crossing and supply of troops in the imminent Second Dacian War against Decebalus, for which he was preparing the biggest army since Augustus’ times, about 150,000 men. The architect Apolodorus of Damascus, to whom the Pantheon is…Continue readingWhen Emperor Hadrian destroyed the world’s longest bridge

The Great Marib Dam, one of the engineering wonders of antiquity

Yemen is a relatively fertile country, thanks to its location on the seashore and its humid climate. It has valleys and mountains to the west, with heights exceeding 3,500 meters, but also desert plateaus to the east. Here is located the Rub al-Khali, considered the largest sand desert in the world. From very ancient times…Continue readingThe Great Marib Dam, one of the engineering wonders of antiquity

The wrought iron bar chain that saved the Amiens Cathedral from collapsing

The Amiens Cathedral, listed as a Historical Monument in 1882 and included in the UNESCO World Heritage List in 1981, is a reference in its style and also has a series of curious elements that make it particularly interesting. One of them is the famous labyrinth that paves the floor of the nave; another, the…Continue readingThe wrought iron bar chain that saved the Amiens Cathedral from collapsing

The oldest bridge in the world, in the Sumerian city of Ngirsu

In the present Tel Telloh of the Iraqi province of Dhi Qar is the site of the ancient Sumerian city of Ngirsu (sometimes transcribed as Girsu). It is about 25 kilometers northwest of Lagash, one of the two main Sumerian city-states, to which it was connected by one of the branches of the Euphrates. Ngirsu,…Continue readingThe oldest bridge in the world, in the Sumerian city of Ngirsu