For a primer on the intriguing ecology and history of giant sequoias, this pint-sized modern museum will entertain both kids and adults. Hands-on exhibits teach about the life stages of these big trees, which can live for over 3000 years, and the fire cycle that releases their seeds and allows them to sprout on bare soil. The museum itself is housed in a 1920s historic building designed by Gilbert Stanley Underwood, famed architect of Yosemite's Ahwahnee Hotel.