A world-renowned botanical garden, zoo and natural-history museum that features a vast collection of native plants and wildlife. Walk into the lush hummingbird and mixed-species aviaries, or learn about the statuesque saguaro and other desert denizens via daily tours and bird walks. Activities for kids include a simulated fossil dig. Open every day, but hours vary by month; free 3 and younger; $14.50, $5 ages 4 to 12 from September to May; $9.50, $2.25 age 6 to 12 from June to August. Visit desertmuseum.org for more information.