Built To Last: Vespasianus Titus Tunnel, Turkey
In 1AD, the Turkish city of Seleucia Pieria had a problem: its all-important port required regular dredging, because the river water that flowed into from the Amanus Mountains carried a large amount of sediment. During each thaw, the river would rise causing frequent floods in the city. To counter this issue, Roman Emperor Vespasian ordered…