A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

A set of seven houses, each built in a style that represents a European country.

Europe's official "zero-level," the equator of elevation.

This subterranean studio is filled with fascinating kinetic art.

A lush Seattle garden designed by the same landscape architects responsible for New York's Central Park.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

This edible park is open to any and all foragers.

The miraculous hydrant that saved the Mission District in 1906.

A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

A hidden world of exotic succulents and cacti.

A mysterious monument covered in a binary code marks the heart of tech.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

An Aladdin's cave of old Silicon Valley tech.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.