What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

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

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

All of Chicago's wood-paved streets are long gone but two alleys remain.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

This unassuming home was once “grand central station” for the Underground Railroad.

A little barn in the middle of the city preserving Hollywood treasures since 1985.

A hidden world of exotic succulents and cacti.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

Celebrating the transformation of trash into objects of beauty.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Four metal statues of massive animal penises stand outside the university's Animal Sciences building.

The only ancient owl carving found east of the Mississippi.

The world's only known button museum.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.