When you first enter the aquarium, you enter through a tunnel, with the sides and celing an arch made of an aquarium. It's really nifty, and I'd love to spend time there - ALONE - just laying on the floor, staring up at the fish.
It was REALLY LOUD in there. You can see a streaming video of this spot here:
http://myst.starforge.co.uk/videos/100_0206.html
We've turned the volume way down from the original for that, but do be prepared for NOISE.
Audubon Aquarium of the Americas, New Orleans, Louisiana, 18 Mar 2008