The fascinating inspirations behind common inventions and creations- from Barbie to Sweet and Low to Mt. Rushmore.

The slinky was born aboard a World War II ship.

The Barbie doll was inspired by a German sex toy.

Weight Watchers began with a Jewish housewife in Queens, New York.

Eureka! explores the fascinating stories behind these famous creations and many others—from blue jeans to the Taj Mahal to Mickey Mouse—detailing the relationships between inspirations and their inventors. Readers will delight in the intriguing—and sometimes surprising—origins behind the ideas that have shaped the world.