Vote for the best trampoline park once per day until polls close on July 17 at noon ET. The 10 winners will be announced on July 24. Have questions? Read the official Readers' Choice rules.

The International Association of Trampoline Parks notes, however, that there were an estimated 50 million North American visits in the past year to the parks, which are becoming increasingly popular.

The trampoline park industry — once among the fastest-growing franchise businesses in America — can trace its roots to an injury-addled 1960s craze and an extreme sport you've never heard of.