Learn how a Chicago welder invented the dome-shaped kettle grill in 1952.
Discover how vinyl records are pressed and how Airstreams are built.
Learn how pencils, Bundt pans and baseball bats are made across the US.
The stories behind Faribault blankets and Nokona ball gloves are revealed.
Discover the secrets behind making banjos, ceramic tiles and baby shoes.
Learn how the Slinky and cast iron skillet have endured for generations.