L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The world's longest known cave system.

This historic national park is covered in the stunning ruins of red rock pueblos.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

See massive fossils that are over 200 million years old in northeastern Arizona.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

One man's quest to save his town with a trail of record-breaking sculptures.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

A true treehouse near Hawai'i Volcanoes National Park.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

Where animatronic singing fish go to retire.

This small, unassuming, nursery plays hosts to some unique plant life.

A gravestone marks where a man's lost limb was laid to rest.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

Row, row, row your pumpkin quickly down the stream.

Nature and religion are reunited at this unconventional church in the forest.

A 12,000-year-old bog boasting rare plants and fauna.

A popular 19th-century natural landmark is now hidden within a sprawling forest.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."