Each room had a different theme, a different time period, or a different location from around the world. There was a distinct focus in each room, such as nautical history, freshwater fish, the jungles of the Amazon, the Aztec ruins, or reptiles such as the reticulated python.
Rare Arabian White Tigers. We watched them for a long time!
We took a "train" through a tunnel of sharks. It was interesting to be totally surrounded by lots of man-eating sharks.
Across the street was the President Bush (the elder) memorial, where we had a beautiful picnic lunch.
We very much enjoyed the aquarium, although it barely took 2 hours to go through. We were planning on an all day adventure. We wouldn't recommend getting the day pass for rides, which included a carousel and ferris wheel. It wasn't worth the extra money.