A two-inch thick solid brass rod that extends an astounding one kilometer straight into the earth.

The final resting place of the famed German pilot, the "Red Baron."

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Walk through a fairytale in Tuscany.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Post office plaque commemorates local resistance to a cult invasion.

A volcanic landmark located on an Ice age lake bed.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

The first U.S. town to secede from the Union, only to vote themselves right back in.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

A fine mixture of the old and the new topped with an art deco neon spire.

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

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.