MARTA by leplaya
The MARTA is Atlanta's light rail system. It has two main lines, one going north and south (the airport is the southern most stop) and another going east and west. They intersect at Five Points, where you could transfer from one to another. Watch out for where each train is heading, though, since there are branches in each line. It is an easy way to get to all the major attractions in Altanta. A round-trip ride is $1.75 (upto 2 children under the age of 6 can ride free with an adult), but it might make sense to get a multiple day pass (press visitor pass on the machine). It comes about every 15 min and runs until about 1:30 AM. I was told by some that it might not be a good idea to ride it late at night, but I didn't really see anything that made me worried.
