I went to Philly this weekend and went to the zoo. They had a big reptile house. It was cool. They had fly river (pig nose) turtles, a huge alligator snapping turtle, some pyxis tortoises, and some babies they had hatched, some galaps, a gopherus aggazzi, and a poor pancake in a very, very small enclsoure. They had some other cool herps too, solomon island skinks, a king cobra, a pair of anacondas that were mating while we were there, some rare monitors.
It was pretty cool. I want to go back some time during week when it hopefully wouldn't be as crowded. It was hard to see everything because there were so many people. I was not impressed with a lot of the mammal enclosures though, some of them were extremely small. Most of the reptile enclosures seemed adequate. Some did not (like the pancake's enclosure).

