Start In Downtown Atlanta Near Peachtree St. Or Your Current Location. Get On I-75 North: Take I-75 North From Downtown (Access Via Williams St Nw Or Another Entrance). Take Exit 252B For Howell Mill Rd Nw. Merge Onto Howell Mill Rd Nw. Turn Left Onto Chattahoochee Ave Nw. Turn Right Onto Marietta Blvd Nw. Continue On Marietta Rd Nw For About 1.5 Miles. Arrive At 1748 Marietta Rd Nw, Atlanta, Ga 30318 (On Your Right).