Both great zoos! I hope to visit Detroit around 2025-6. Do you prefer the Arctic Ring of Life or the Polk Penguin center?
Maybe a few parts, but isn't it's age it's beauty? If you revamp the zoo, then it's like the history isn't there.
My home zoo is the NC Zoo. It doesn't have a very wide variety of species but it has stunning exhibits and is the largest zoo by area in the US.
Well to an extent, I don't know if concrete 20ft elephant enclosure (just example) is history but a statue or building for sure.