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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

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

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

Limestone caves with spectacular showcase chambers.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Two massive rock outcroppings on the Oregon coastline.

10,000 flowered plants bloom in the City of Roses.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A beautiful 62-acre Catholic shrine and botanical garden.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

Stepping inside this coffee shop is a journey through time.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

A Wild West jailhouse that slid down the mountainside.

A mysterious "wedding cake" castle in the middle of the urban desert.