Me and my family are spending the next few days vacationing in Washington DC and are planning to use the metro and other public transit as our main form of transportation.
We took the metro rail and a metro bus from the airport to our air BNB, but we're confused as to how to actually pay on the metro bus.
We got cards at the airport and swiped our cards when we entered and exited the metro rail but didn't see a similar thing when we were on the metro bus. We didn't see other people swipe anything or get change out either.
How do you actually pay for the metro bus in Washington DC?