[SunkenCiv]

The longest tunnel in ancient history. A highway suspended over a raging river. A secret harbor for the Roman navy. These are three of the most impressive Roman engineering projects that you've probably never heard of.

Chapters:
0:00 Introduction
1:24 The Tunnel of Claudius
4:33 The Iron Gates Highway
7:16 The Secret Harbor at Lake Avernus

Three Forgotten Roman Megaprojects | 11:30 | toldinstone | 511K subscribers | 854,276 views | March 31, 2023

[Celtic Conservative]

Dr. Ryan is one of the best YouTube historians out there, along with Darius Arya. For more modern stuff Dr. Mark Felton is great too.

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[Gay State Conservative]

What Have The Romans Ever Done For Us?