There Are Millions of Skeletons Hidden In Washington, DC

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Why do we build monuments? What are they made of? Click here to SUBSCRIBE — http://bit.ly/iotbs_sub ↓ More below ↓ I took a trip to Washington D.C. to check out some of our nation’s most famous monuments.…