CitySights DC operates hop-on, hop-off bus tours aboard a fleet of new double-decker buses. Tours include informative and entertaining narration in English and other languages. You can purchase 24-hour and 48-hour passes that include three individual loops to view the most famous monuments, landmarks and places of interest. You will get two consecutive days of the most picturesque sightseeing. If you’ve ever wanted to visit the historical city of Washington DC, try CitySights DC.