Take a journey back in time with this "Then and Now" shot of the old Riggs National Bank across from the Department of Treasury. See the 1919 and today's shot from Google Street View. Follow @GhostsofDC on Twitter for more updates.

Check out this photo of an overturned bus in Petworth, Washington D.C. in 1921, plus a bus route map from 1933. A reminder of the bus system's early days!