This massive redwood tree has a hole in the base big enough to drive through.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This sculpture forces visitors to confront their relationship with space.

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

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

Eyam took steps to quarantine themselves and keep the plague from spreading.

Some of England's last cave dwellers lived and worked within this huge cave.

Ever wanted to can Spam?

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The highest point in Texas is capped by a big silver pyramid.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A museum dedicated to the alleged Roswell Incident.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

A tourist attraction founded around a slumping cabin.

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

A tribute to the life and work of the beloved "Peanuts" cartoonist.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.