@Ituri: you make an excellent point. I personally enjoy the wolf cabins that seem to pop up at many North American zoos, as it allows for a closer look at the animals and doesn't really affect the wolves at all. The range rovers in with lions would be second on my list, and definitely last of all would be the Mayan temple theme as often jaguar enclosures are designed around the mock-ruins. At least with the wolf cabins there are no wolves actually hanging out inside wooden homes.
