Before I continue, let's get this out of the way:
As a Southern California native, I grew up assuming the San Diego Zoo is the greatest zoo in the world. It does, after all, have pandas. I've also visited the zoos in Los Angeles, Santa Barbara, London, the Bronx and Central Park. The Omaha Zoo does not have a panda, but it's still my favorite.
Nathan has taken me to the Omaha Zoo twice, and we have still not seen all the exhibits. There are so many animals! Many of the animals are outside like at a traditional zoo, but there are also enclosed "environments" like the Desert Dome and the Lied Jungle.
(And, because I'm feeling really mature, I'd like to take this opportunity to point out that I have not yet had a chance to visit the Grewcock Butterfly & Insect Pavilion, but I just want to mention the Grewcock Pavilion because it's called "Grewcock" and holy crap, how does anyone ever say that last name with a straight face?)
My favorite part of the zoo is probably Skyfari, which is like a ski lift that crosses over the park. You fly only about twenty or thirty feet above giraffes, monkeys, ostriches and other fun animals. If you ever visit Nebraska, I highly recommend the Omaha Zoo.
Oh yeah, I might have gone crazy with my camera while we were there....