The Washington Monument
14:13
The Insane Security of the White House
7:02
Inside the Washington Monument
13:10
Washington D.C.'s Secret Government Subway System Explained | The Senate Subway
9:25
Samurai Armor owned by the general and lord Sakakibara Yasumasa
15:25
The Most Impressive Church in Paris (Not Notre Dame)
9:22
The Unbuilt Monuments of Washington D.C.
7:36
The Black Obelisk
14:56