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

The location of the last stand of Charles Manson's doomsday cult.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

Explore 10 acres of environmental sculptures.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Most-visited and most-photographed slot canyon in the American Southwest.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

Dig for your own trilobites in this goldmine of invertebrates.

A cemetery housing wild west legends in South Dakota.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

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

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The monument dedicated to Phineas Gage in the town where his accident happened.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The highest point in Maryland is only accessible by hiking through another state.

The site of one of history's most indelible and horrific tragedies.

An unrealized dream to wirelessly electrify the entire Earth.