Places Sam Wants to Go

An abandoned railroad tunnel is now filled with bioluminescent bugs.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.

Climb right into the heart of this colorful Iceland volcano.

A corkscrew-shaped barn in Ireland.

A Jenga-style cylindrical tower of books that appears to go on forever.

Stroll through a wonderland of stupendous moss-covered trees.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Hot springs monkey spa in the middle of Hell's Valley.

Enormous lake at the bottom of a unique cave system.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Continuing the tradition of the dime museum in style.

Giant busts of 42 U.S. presidents sit, crumbling in a field in Virginia.

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

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A sharp bend in a dramatic river canyon cut through red rocks.

An emerald-green grotto just a short trip from Austin.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

An exquisite tunnel of cascading flowers.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

On the Oregon coast is a natural hole that seems to be draining the sea.