Mont Blanc Tunnel Fire: Engineering Marvel to Infernal Grave | What Went Wrong | Free Documentary Beirut Blast Disaster - The Largest Explosion in Modern History: https://youtu.be/b5YjIGt8pR0 1999 a devastating fire killed 39 people inside the tunnel that runs under Mont Blanc, between Italy’s Valle d’Aosta and France’s Chamonix. This is the story of why an engineering marvel turned out to be a deadly fire trap. ▬▬▬▬▬▬▬▬▬ Subscribe to Free Documentary Channel for free: https://bit.ly/2YJ4XzQ Instagram: https://instagram.com/free.documentary/ Facebook: https://bit.ly/2QfRxbG Twitter: https://bit.ly/2QlwRiI ▬▬▬▬▬▬▬▬▬ #FreeDocumentary #Documentary #WhatWentWrong ▬▬▬▬▬▬▬▬▬ Free Documentary is dedicated to bringing you high-class documentaries on YouTube for free with the latest camera equipment used by well-known filmmakers working for famous production studios. You will see fascinating shots from the deep seas and up in the air, capturing great stories and pictures of everything our extraordinary planet offers.