Discovery Gateway, formerly the Children's Museum of Utah, has been entertaining and educating children of all ages since 1983, when the museum opened outside downtown Salt Lake City. A new (and much larger) building was opened for the museum in 2006 in the Gateway District.
Every exhibit and display in Discovery Gateway is interactive. Subjects of the museum's exhibits range from building, film, science, engineering, art, music, and animals. There are temporary exhibits as well, and a regular slate of classes available for kids through age 12.
Discovery Gateway is open Monday-Thursday from 10am-6pm, Friday-Saturday from 10am-8pm, and Sundays from noon-6pm. Tickets are $9.50 per person ($7 for seniors), with members and children under two years getting in for free. Note that kids under the age of 14 must be accompanied by an adult.