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Photo: TGMShowTM, CC BY-SA 3.0 via Wikimedia Commons
For two weeks every winter, the world meets in Tucson as it becomes a bustling, international marketplace of buyers and sellers at the Tucson Gem, Mineral & Fossil Showcase. The "Gem Show" is much more than a single event at one location. Rather, there are thousands of participants and attendees at nearly 50 sites around town. Dozens of shows take place at the same time – in giant white tents, at hotels and resorts and at exhibit halls. There's something for everyone at the many open-to-the-public shows – from gold and diamonds to granite bookends and glass beads – and from fine specimens of dinosaur fossils to opals dug from the Australian Outback.
The Tucson Gem, Mineral & Fossil Showcase are gem and mineral shows that take place annually in late January and February at multiple locations across the city of Tucson, Arizona. Most of the shows are open to the public, except for certain trade shows which require registration with a business license.
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A "dry" cave with 3½ miles of mapped passageways. The cave was used by pre-Columbian Native Americans, and rediscovered in 1879. Also on park grounds are a cowboy ranch museum, a butterfly garden, horseback trails, and picnic and camping facilities.
Features over 400 historic aircraft on an 80-acre (32 hectares) site with five hangars, three of them devoted to World War II. Veterans and volunteers are often on hand to answer any questions, and there are daily walking tours of the grounds. There is an onsite restaurant.
Another park with activities including minigolf, bumper boats, go-karts, laser tag, and arcade games.
Fort Lowell was a US Army post, active in the late 19th century during the Apache Wars. Most of the adobe structures are now in ruins, but the commanding officers' quarters have been reconstructed and now house a small museum, with exhibits focused on military life on the frontier. The building also has a small gift shop.
A historic Sonoran-style adobe chapel, built in 1915 and on the National Register of Historic Places. Unfortunately the church is usually only open for special events, but it can be freely appreciated from the outside.
Cares for more than 500 animals. The zoo has a state-of-the-art facility for treating cancers with radiation and heat therapy, and treats animal patients from zoos all over the country.