Fun Facts About the Washington Monument

The Washington Monument, a towering obelisk standing at 555 feet and 5 and 1/8 inches, is an architectural marvel constructed from 3,491 blocks of white marble, granite, and blue stone gneiss. Remarkably, the structure relies entirely on gravity and friction rather than wet mortar, with its massive base walls tapering from 15 feet to 18 inches at the top to distribute its 91,000-ton weight. Designed by Robert Mills in the 1830s, the monument was originally envisioned as a far more elaborate, circular colonnade topped by a statue of George Washington in a toga. However, due to budget constraints, the design was drastically simplified into the modernist, minimalist tower that stands today. The monument’s construction spanned nearly 40 years due to major disruptions, including a 25-year halt starting in 1854 caused by political disputes and a lack of funding. During this hiatus, the unfinished structure sat as a stump on the National Mall, even serving as a cattle yard and slaughterhouse during the Civil War before the U.S. Congress and the Army Corps of Engineers took over to finish it. At its highest point, the monument features a solid aluminum capstone, which was considered a precious and costly metal at the time of its casting in 1884, just years before the Hall-Héroult process made aluminum cheap and widely available. Despite rumors that the massive structure is sinking into a swamp, historical engineering projects successfully underpinned and reinforced the monument's foundations, keeping it perfectly stable even during major weather and seismic events. Learn more about your ad choices. Visit megaphone.fm/adchoices