I really like how dense the undergrowth appears here, even though it is a fairly small rainforest in comparison to many others. I've seen massive ones in American zoos (Omaha's "Lied Jungle" is 1.5 acres!) but sometimes the small, well-detailed rainforests can be just as compelling for the average visitor. Overall London Zoo is now regarded as a fairly compact, historical zoo, and so it is somewhat fitting that there is a small yet impressive jungle inside of it.