Hop-On Hop-Off Bus Tour of Washington DC: Monuments, Landmarks and Memorials. Enjoy easy transportation across the city by double-decker bus on three sightseeing loops with this hop-on hop-off tour in Washington DC. With a 24-hour pass, you can explore the nation’s capital to see famous landmarks, neighborhoods and top attractions like Arlington National Cemetery. Gain insight on DC memorials and monuments as you listen to informative guided commentary, and hop off wherever you please. Upgrade to a 48-hour pass to include a night bus tour, access to the National Harbor shuttle and admission to the National Geographic Museum. Book with us and Save 10% Off Hop-On Hop-Off Bus Tour of Washington DC: Monuments, Landmarks and Memorials.