Interesting. I quite like these fisheye'ish photos for showing a larger section of exhibits. Too long since I've been to the zoo, but haven't had any business trips to Chicago lately (my usual excuse for getting to that corner of the US).
That's a good question considering the zoo renovated their vents to make the building cooler. Before, the reptile house would get so humid that there was no need for middle exhibit to have a heating source and it made it unbearable for guests to walk through on hot days.
