I have only visited Detroit, San Diego, National, Cleveland, Cincinnati, Columbus and Bronx Zoos, but have read about the other exhibits.
I disagree with No. 18 and possibly No. 20. The idea is revolutionary (the O-Line) but the exhibit is just average. Because Big Cat Crossing is just part of the Zoo360 system, I disagree. Night Hunters at Cincy should be on here. It is so nice to see Cleveland Zoo represented on here! I rank African Elephant Crossing maybe around the #10-12 mark.