I was with my roommate, driving back from tybee island. i was sitting in the passenger seat, looking out of the window. we were headed south on east broad when i saw two very large triangular crafts hovering above the city. they were very dark (dark gray to black)in color. they where covered in large, round white lights. the crafts were parallel to each other and perpendicular to the ground. the widest part of the triangle was closest to the ground with the top pointing upward. they stayed stationary. i saw them above the city, fairly low flying for any sort of air traffic. i can't say exactly how large they were, except to describe them as enormous. the car windows were up, so i couldn't here anything, but i would expect something of that size to make a sound loud enough to be heard inside a nearby vehicle. i will note that on the way back from the islands i did notice two or three seemingly stationary aircrafts in the distance. unlike the triangles, these seemed to be either planes or helicopters, but they were too far away for me to give more details than that. the night was somewhat cloudy and the triangles were far below the clouds. after i first saw them, i lost sight of them for a few seconds, as a building obstructed my view of them. we drove past an alley, at which point i caught sight of them again. when we got to the next cross street, i asked my roommate to turn right. she did, but the street was lined with trees which obstructed the view of the sky. when we turned again, we had a clearer view of the sky, but we could not spot the triangles. unfortunately, since my roommate was driving, she never saw them.