Out of all the museums I have been to over the yea...

Out of all the museums I have been to over the years, this is definitely one of my favorites! I guess it helps that I have been there twice for free, but even though I have been several times, it seems that there is always something new to see. The rainforest exhibit is amazing; you go up a spiral walkway through each level of the forest and can observe the different types of trees, butterflies, lizards, birds, and even spiders (which were not in a glass case, by the way). The museum also has live penguins and an amazing eco-friendly roof which is covered with living plants and exotic flowers. If you are in San Francisco and want to have a relaxing, yet educational day, check out the California Academy of Sciences!