Видео с ютуба Ancient Fortifications

The Technology that Ended the Middle Ages

Ancient Egypt's Mega Fortresses - 3D DOCUMENTARY

15 Ancient Fortresses built in impossible locations

Ancient Shelters, Bunkers, Hideouts, and Fortifications | Pre-Cataclysmic Protective Structures

Ancient Fortifications

5 Ancient Chinese Fortresses So Advanced They Stood for Centuries of Attacks

15 AMAZING FORTS and FORTRESSES

India’s centuries-old ‘unconquerable’ sea fort - BBC News

‘Impossible’ Ancient Fortress #history

Древние укрепления раскрыты: истинные причины их строительства.

Walls of Constantinople: The Last Great Ancient Fortification

The Ancient Roman Fort That Was Also A Massive Iron Age Settlement | Time Team

Inside The Deadly Siege Tower Of Ancient Macedonia!

How to Lay Siege to a Polygonal Fortress in the 18th and 19th Centuries

Fort Ancient: A Glimpse of Ancient America

Castle gatehouses - the medieval 'kill zone'

Bastions of Power - Life behind the Walls of Europe's Castles | Full Documentary

A Thousand Years of European Castles

Half-Baked Archaeology: Explaining Fort Ancient, Ohio