Washington DC is a highly walkable city, and many of the main attractions are within walking distance of each other. However, there is also an extensive public transportation system, including buses, trains, and subway lines. Visitors can purchase a SmarTrip card for easy access to public transportation, with fares typically ranging from $2 to $5 per trip.
If you have more time to spend in Washington DC, consider visiting some of the city's lesser-known attractions, such as the United States Holocaust Memorial Museum or the International Spy Museum. If you have less time, consider combining some of the attractions into a single day, such as the White House and the National Mall. Additionally, be sure to take advantage of the numerous food trucks throughout the city for a quick and delicious meal on the go.