Your inside source for family friendly D.C.
I really love the train. It would be my preferred method of travel if it went everywhere I wanted it to and if I could afford it. For D.C., the train can be a really great option. Amtrak runs directly into Union Station, which is right downtown, and it is enough of a commuter hub that there are plenty of trains going in and out at all hours.
Buses of all description also stop in D.C., many of them unloading at Union Station or nearby. All of the major chains like Greyhound and Peter Pan will run through and a lot of the zippy little “discount buses” also drop off in various locations around the city. Mega Bus, Vamoose, DC2NY, Bolt, MVP…just to name a few. Look carefully at where these pick up and drop off because sometimes the locations change.