Spend a fun day learning about planet earth as well as the heavens above it at A Key Encounter Nature Theatre and Planitarium in Key West. Here are some reviews from visitors that are posted on their website:

Delray Beach: Want to come back. Ft. Lauderdale: Loved it, loved it, loved it!
Key West (man signed name as journalist):
This is a great encounter for locals Marathon: Exciting & Interesting.
Miami: Great. Loved the anaconda New Port Richey: Inspiring.
Ocala: Super Panama City: Very nice. Fantastic.

Learn more at http://www.akeyencounter.org/.