What U.S. monument is held together only by gravity and friction? Explained
https://www.youtube.com/watch?v=Q8bttSWyyqI
The Washington Monument, a renowned obelisk located in Washington, D.C., stands as a remarkable feat of engineering and design, supported exclusively by gravity and friction. Comprised of 36,000 blocks of marble, granite, and bluestone gneiss, this structure does not depend on traditional bonding agents such as mortar or cement. Rather, its stability is maintained through the sheer weight of the precisely crafted stones and the friction between them. Rising to a height of 555 feet, the monument pays tribute to George Washington and boasts the distinction of being both the tallest stone structure and the tallest obelisk globally.
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