Question: things to do in washington dc hop on hop off bus?
Answer: Hop-On Hop-Off Washington DC. location_on Stops: 34. ... , Washington DC Sightseeing FLEX Pass. location_on Stops: 34. ... , Spirit of Mount Vernon Cruise. $55.25. ... , International Spy Museum. $26.44. ... , Monuments at Night Bike Tour. $49.00. ... , National Geographic Museum. ... , Madame Tussauds Washington DC. ... , Washington DC Night Tour.