Here in California, there are about 235 different butterfly species.
When I was in Ecuador at the Yasuni Nature Preserve, there were over 2,000 different species, and the preserve is about 1/25th the size of California.
Every few minutes, I would be blown away by some gorgeous new creature that I never knew existed.
Rain forests are my favorite places to be, right along with Yosemite in the early Spring (when the waterfalls are at their mightiest), and ocean beaches during a storm.