You can make it just in time for the 21st annual Downtown Parade of Lights. It is scheduled for December 19 at 6:30 p.m. and will last for about two hours. The event is fun, family-friendly and free (and there are prizes). When people think of Arizona, they usually imagine a desert, but it can be very diverse. The Arizona-Sonora Desert Museum is a major attraction with its fusion zoo, botanical garden, natural history museum, aquarium, and art gallery. You can explore 21 acres with two miles of walking trails. If you’re interesting in something more rocket science-related activities, the Kitt Peak National Observatory has the world’s largest collection of optical telescopes – 24 optical and two radio telescopes representing dozens of astronomical research institutions. But if you want to see amazing things on the ground, the Saguardo National Park is the place.