The Hilton Garden Inn at 275 Baker Street is in downtown Atlanta near the Dome/GWCC/CNN MARTA station on the blue/green rail line. The hotel features free WiFi, fitness center and outdoor and indoor pool.
If you are coming from the airport, take any departing train to the Five Points station and follow the signs to the westbound train platform. Board the first westbound train that arrives (Bankhead or H.E. Holmes) and ride one stop to the Dome/GWCC/CNN station. Follow the signs pointing to the State Farm Arena to exit the station.
After going up the tall escalator and reaching street level, keep to the left to walk around Philips Arena, turning right around the building twice. Walk about a block, and after passing the CNN Center, turn left on Marietta Street. Walk slightly more than a block and turn right on Baker Street to reach the hotel (see walking map). Approximate walking time is 10-15 minutes.