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!"

CLASSIC: The Night Witches: How an All-female Soviet Bomb Squad Terrorized Nazi Germany
31:35

Mata Hari: Courtesan Turned WWI Double Agent?
36:53

That Time We Made Backpack Nukes
31:27