The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

The oldest orange tree in California spawned a generation of citrus farmers.

The long, arduous journey of the stones of the Abbey of New Clairvaux.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

Supposedly Satanic numbers adorn this preserved submarine sail.

Home to the deepest rift anywhere on Earth.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

Journey through the largest remaining peat bogs in the contiguous United States to see the wilderness as it once was.

A railroad lift bridge that was only lifted once and became obsolete before construction was finished.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This ambitious attraction was the brain child of a lake resort impresario, and built by the WPA.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

The pharmacy's retro ice cream mixer is one of the last of its kind.