Hop-On Hop-Off Bus Tour of Washington DC: Monuments, Landmarks and Memorials. Explore the most popular sites in Washington, DC on this hop-on hop-off bus tour. Visit many of the top attractions in the nation’s capital — like the White House, Washington Monument, the National Mall, historic Georgetown, Arlington National Cemetery and more. Select a 1- or 2-day pass, then board at any of the stops on three separate routes and get to know the city in custom fashion, with live and recorded narration. Admission to the National Geographic Museum, National Harbor ticket and a night tour included with 2-day pass. Book with us and Save 10% Off Hop-On Hop-Off Bus Tour of Washington DC: Monuments, Landmarks and Memorials.