https://freerepublic.com/tag/wasitsupposedto/ en-us Sun, 12 Jul 2026 12:23:35 GMT Focus Forum 15 https://freerepublic.com/focus/f-chat/4387671/posts An in-depth look at the construction of Rome's Pantheon and its famous concrete dome. Why hasn't the Pantheon's dome collapsed? | 13:33 toldinstone | 628K subscribers | 662,909 views | June 23, 2023Chapters: 0:00 Introduction 0:28 The purpose of the Pantheon 1:16 The design 1:58 Roman concrete 2:32 Quarries, contractors, and workforce 4:02 Foundations 4:44 Building the walls 5:41 Relieving arches and buttresses 6:35 Masterworks 8:08 Building the dome 9:51 The portico 10:54 Decoration 12:32 Insane Emperors, Sunken Cities, and Earthquake Machines YouTube https://freerepublic.com/focus/f-chat/4387671/posts#comment Sun, 12 Jul 2026 12:23:35 GMT