Absolutely incredible building: The Library of Congress is a masterpiece.
This is quite an eye-opening video: Window to the Past - Millenial Kingdom and The Little Season - Library of Congress - Washington DC
"Said to have been built in the late 1800's, this exploration will shake the foundations of that story and your beliefs about what once was. Windows to the truth still exist in plain sight."
Built in the 1800's? Think again. We have been lied to about everything
https://www.youtube.com/watch?v=kJW8dQqis54