There are many tours of the National Mall on offer, but were you aware there is an entirely different set of historic buildings & memorials to see up on top of Capitol Hill? Besides the Supreme Court, the Congressional office buildings, the Marine Corps barracks, and the Capitol itself, you will gain a close view of incredible architecture, and an established residential neighborhood up there.  This tour generally lasts 2 to 2.5 hours, depending on stops, begins at Eastern Market metro station, and ends at Union Station, a historic railroad station and metro station.