Skyscrapers are beautiful -- and utterly ridiculous. In the first part of this two-part episode, Ben, Noel and Max learn how modern skyscrapers were largely inspired by one guy who, no kidding, saw a heavy book resting on a birdcage and thought "yes, that. But bigger!"

Knitting as Espionage, Part Two: Legendary Spies -- and One Traitor
33:37

Knitting as Espionage, Part One: Secrets in the Stitch
33:37

CLASSIC: Idiomatic for the People II, Part II
38:46