Forteresses et châteaux imprenables : constructions XXL | Documentaire Complet

In the 16th century, citadels were veritable behemoths, erected to protect cities and armies from invaders. Built on exceptionally high ground, they were designed to repel an enemy capable of any barbarity. Some, like Sisteron, raised their ramparts directly onto rocky ridges. The result is striking: a jewel of French history. Others, like Besançon, were designed to withstand the devastating fire of the most powerful cannons. Hidden within a vast barracks, a gigantic protective wall remained invisible to attackers. But these fortresses served not only for defense: they also allowed for population control. Fort Saint-Nicolas in Marseille pointed its cannons not at the enemy, but at the city, ready to suppress any revolt. With its star-shaped design, underground galleries, and ultra-secure powder magazine designed to prevent any explosion of the hill, Fort Saint-Nicolas still holds many secrets. What techniques did the builders employ to erect these citadels as tall as skyscrapers? Why do those who attempt to capture them invariably end up trapped, pierced by crossbowmen? And what about the strange method of sending kamikaze rats to blow up buildings? Sisteron, Marseille, Besançon... This is the story of France's most extreme citadels. Subscribe to our channel 🔔 00:00 - Intro 02:30 - Sisteron Citadel 32:35 - Besançon Citadel 50:32 - Fort Saint-Nicolas: Marseille Citadel #Fortress #Castle #Citadel #History #France #Documentary #Heritage #Architecture #Vauban