This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The 606 is a decade in the making.

A display of magnificent stained glass windows is the first exhibit of its kind.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

This gold-winged spire celebrates the first true flight around the world.

Leave a button on the jacket of this iconic Seattle clown.

This former coal gasification plant found a curious second life as a popular public park.

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

A wall of chewing gum moonlights as collective art.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

Beloved bar home to musicians of all eras and reputations.

A lush green oasis in the middle of Chicago.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

A giant open-air sculpture made of over 200 full-sized boats.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

A bit of retro transportation flair preserved in the world's largest department store.

This historic hotel invented the chocolate brownie.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

The only Bahá'í house of worship in North America and one of only a handful worldwide.