Don poses for a photo in front of the Memorial Bridge in Portsmouth, NH.
Located high above the Piscataqua River, the Memorial Bridge is being de-constructed due to saltwater damage.
Don gets a front-row seat to the demolition of the Memorial Bridge.
The Off Limits crew films as Don enters NASA's Plum Brook Station in Sandusky, OH.
Don tours NASA's Plum Brook Station. The station is home to a hypersonic wind tunnel and the world’s largest space environment simulator.
Don meets with expert Peter Kolb at NASA's Plum Brook Station.
Don checks out some of the mechanics at Plum Brook Station. This complex specializes in large-scale testing to develop technology for use in aeronautics.
Don uses a jackhammer to break apart chunks of salt. Real Salt is an all-natural sea salt taken from an ancient inland sea bed in central Utah.
The Palm Springs Aerial Tramway is the largest rotating aerial tramway in the world. Don joins the maintenance crew on an inspection of the tram wires.
Don heads to the Port of Long Beach where he helps take apart old cars, appliances and gadgets so that their component parts can be shipped off to become a whole new generation of automobiles, washing machines and smart phones.