Inside Mighty Machines

For over 40 years, the Brent Delta oil rig stood tall in the North Sea, extracting oil and gas from beneath one of the roughest seas on the planet. Now this extraordinary machine has reached the end of its life and has been towed ashore to a decommissioning yard, where it'll be torn apart, melted down, and sold for recycling. Engineer Chad Zdenek is on hand to help the salvage team dismantle the 40-story, 26,000-ton oil rig and uncover its five engineering innovations.

The C-5 Galaxy has been a crucial part of the U.S. Air Force for almost 50 years, serving in wars in Vietnam, the Gulf and Afghanistan, and delivering aid to the world's worst disaster zones. Now, maintenance personnel at Robins Air Force Base in Georgia are tearing them apart and rebuilding them for the 21st century. Former NASA engineer Chad Zdenek joins in for an up-close, hands-on look at this colossal cargo plane, revealing the five engineering innovations that made it a military legend.

For 40 years, Nimitz-class aircraft carriers have delivered U.S. military might all over the globe. But now these legendary ships are being slowly phased out for a new fleet of supercarriers. Former NASA rocket engineer Chad Zdenek spends a week aboard the USS Carl Vinson with a team of engineers, mechanics, and sailors to uncover the engineering innovations that allowed this ship to launch, land, and relaunch more planes, more quickly than ever before.