Indy Flight Academy & Watersports, Cicero

Science-fiction fans are eternally disappointed that society hasn't yet developed the technology that would allow them to strap on a jetpack and rocket to their destination. Though Indy Flight Academy & Watersports can't supply you with a futuristic vehicle for the daily commute, it does give extreme-sports enthusiasts the chance to blast off with its Flyboard water-powered jet packs. They've taught 800 students to fly successfully, from ages seven to 65.

The Flyboard—a water board with a pair of boots attached to it—is attached to long hose, which is in turn hooked up to the water jet exhaust of a jet ski. When the jet ski's driver hits the gas, the Flyboard and rider shoot up into the air atop high-powered streams of water. Riders of all ages can then fly around above the water or mimic a dolphin diving in and out.