The Washington Monument is one of my favorite pieces of Architecture that I have visited so far. This astonishing 555 feet tall obelisk amazes me. I got to see this Monument in the 5th grade with a bunch of my class mates. I was actually lucky enough to travel to the top before it had been shutdown because of a earthquake that had caused structural damages.  My favorite part about this piece of architecture is that when coming down our guide showed us that every state as there own stone. So each fifty states has own personalized piece of stone that is built into the monument.