This natural marble cave is one of only five national monuments in Oregon.

You’ll feel like you’ve gone through the looking glass at this contemporary art museum filled with glass sculptures of every size, shape, and color.

This beautiful Miami garden was designed as a laboratory for tropical plants.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

Dine on dumplings at the oldest dim sum restaurant in New York.

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

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

Visit a fourth-generation farm and museum dedicated to everyone's favorite fungi.

These unique rock formations were created during the Ice Age.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

A glittering Thai Buddhist temple in suburban Pennsylvania.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

The oldest farmer's market in America is so ancient it was approved by the King of England.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

This might just be the TARDIS of bookstores.