When I was about seven, my sister and I were taken on a special trip to see the Giant Pandas at the National Zoo in Washington, DC. The pandas were fine, but we were fascinated by the chipmunks running around everywhere.
Given your username, I will mention the fascination of visitors with the squirrels in Washington. I know that they used to interest me when we visited my grandmother in Arlington. We had some in northern Ohio, but a) there was less tree cover, and b) a far smaller proportion of the trees were oaks.