|On this 1871 map, Union Station is the arched-roof structure at top left, labeled no. 8; just below it, labeled "F" is the Georgia Railroad freight depot and that railroad's roundhouse. At the bottom right are the Atlanta & West Point freight depot (labeled "H") and the Atlanta & Richmond Air Line Railway depot (labeled "I").
The building with a center tower at lower left and labeled no. 2 is City Hall; Georgia's state capitol now stands on the site.
Source: Ruger, A. Birds eye view of the city of Atlanta, the capitol of Georgia 1871. Map. St. Louis, Mo. . From Library of Congress Geography and Map Division. American Memory. Ruger map collection; no. 3. http://hdl.loc.gov/loc.gmd/g3924a.pm001210.