where are the monuments we should be building
The Monuments That Were Never Built. In a new exhibit at the National Building Museum, imagine Washington D.C. as it could have been. Projected Improvements to the Washington Monument and National Mall by B.F. Smith, 1852. âUnbuilt Washington,â the newest exhibition at the National Building Museum in Washington, D.C, highlights over 100 architectural projects proposed for the nationâs capital since 1791.