Unknown to most passersby, there’s a 12-foot-tall replica of the Washington Monument under a manhole near the actual monument. (via Atlas Obscura)
https://www.mstutz.com/wp-content/uploads/2017/02/20140408WM030-TopofbenchmarkAshowinggougeinwestedge.webp735980Maurer-Stutzhttps://www.mstutz.com/wp-content/uploads/2026/08/Logo-1030x301.webpMaurer-Stutz2017-02-10 14:45:402017-02-10 14:45:40Washington Mini Monument