Finding your way close to Washington DC can be very unnerving especially if you are trying to travel to all of the tourist sites. Taking a tour might be cheaper than finding and paying for auto parking, and getting your seat tickets to each attraction. A guided tour can offer more information about the tourist spot than one might gather on their own.
Taking a guided tour inside Washington DC is a smart undertaking. Tour guides know the avenues to avoid traffic which enable it to point out places of interest along the way.