What’s Behind the World’s Heaviest Door?

Unlike a giant vault or blast door, the world's heaviest door was built to protect the outside world...from what was behind it... 👕 NEW MERCH DROP OUT NOW! https://shop.kylehill.net/ 💪 JOIN [THE FACILITY] RIGHT NOW for members-only live streams, behind-the-scenes posts, and the official Discord:   / kylehill   🎥 SUB TO THE GAMING CHANNEL:    / @kylehillgaming   ✅ MANDATORY LIKE, SUBSCRIBE, AND TURN ON NOTIFICATIONS 📲 FOLLOW ME ON SOCIETY-RUINING SOCIAL MEDIA: 🐦   / sci_phile   📷 Instagram:   / sci_phile   😎: Kyle ✂: Charles Shattuck 🤖: @Claire Max 🎹: bensound.com 🎨: Mr. Mass    / mysterygiftmovie   🎵: freesound.org 🎼: Mëydan “Changes” (https://meydan.bandcamp.com/) by Meydän is licensed under CC BY 4.0 (https://creativecommons.org)