The miraculous hydrant that saved the Mission District in 1906.

California's most comprehensive horticultural library.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

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

Deadly airliner crash preserved for those willing to climb and pay respects.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

A house carved into a rock in the 1940s.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

Metal water storage tank turned ethereal concert hall.

These aggressively sustainable art homes look like something out of 1970's science fiction.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

When ecosystems collide in the arid Southwest.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

See six states, pickled freaks, rocks, and antiques.

The largest self-built castle in the U.S., six decades in the making.