Calacademy, San Francisco

Where: California Academy of Sciences, Golden Gate Park, San Francisco

Attractions:

• A rainforest dome with humidity controlled and maintained at a very high level similar to what you might find in tropical rainforests.  Filled with tropical plants and butterflies.
• Planetarium - plays specially made movies related to nature and planets.
• Reptiles and penguins section.
• African hall with a whole lot of stuffed animals that look very real.
• The roof of the building is a living roof with grass and small flowering plants growing all over it.

Tickets and other information, check here.  (If you use public transport to get there, you get a small discount so save the tickets for proof).