Off Limits

Making Gold, Escaping Alcatraz & Tunneling Under Grand Central

Wrestling Gators, Flying the Good Year Blimp & Earthquake-Proofing San Francisco

Fighting Wildfires; Scaling Bridges

Digging Under Manhattan; Climbing Coasters; Training in Disaster City

Manning Nasa's Mars Rover; Stamping Out Coins & Taking Water From Toilet to Tap

Bobsled Racing, Automated Airport Baggage & Backstage Acrobatic Aquatic Show

Digging for Sea Salt; Demolishing a Bridge; Atop a Tramway

Atop the World's Largest Domed Stadium, Entertaining with Water, Fire and Ice & Crushing Concrete Roadways

Launching a Rocket, Demolishing a Pier and Firing Rounds

Navigating Rapids, Mucking Out Pig Stalls, & Conquering a Rodeo

Blasting Granite, Bobbing For Logs, and Training With The Pit Crew

Drag Racing, Scaling Water Slides and Logistics By Ups

Exploding Fireworks, Building Jet Engines, and Reconstructing the National Cathedral