Coming in from the North

Coming from North:
Take I-35 South to 6-8th Streets exit
Turn Right on 6th Street. You'll pass one entrance (on your right), typically closed, before reaching the first light.
At the first light (Red River), turn right. You'll pass the other entrance (on your right), used for every show, before reaching 7th Street.
OR
Take Mopac (Highway 1) South to 1st-5th Streets exit. Doesn't really matter if you take 1st or 5th (we'll assume you took 5th, though, cause it gets you closer).
Continue on 5th. It's a ways down. You'll have to go past S. Congress and continue a little farther.
Turn Left on Red River. The next intersection you come to is 6th Street. Our enterance will be just after the light on your right.

Coming in from the South

Coming from the South:
Take I-35 North and exit 6-12th Streets.
Turn Left on 6th Street. Go through the first light. After that, you'll pass one entrance on your right, just before you get to the next light.
When you reach the next light (Red River), take a right. You'll pass, on your right, our other (main) entrance.
OR
Take Mopac (Highway 1) North to the 1st-5th Streets Exit. Doesn't matter if you take 1st or 5th, but 5th will get you closer.
Continue, past S. Congress and past a few more streets to Red River.
Turn Left on Red River. The next light is 6th Street.
Go through the 6th Street light. Directly after it, you will see our main entrance on your right.