California's longest-running tourist attraction is a stump.

A popular tourist cave with a dark past.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

The fifth-longest natural arch in the world, and the longest outside China.

This enigmatic building features numerous architectural styles.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

These unusual rooms on wheels are holdovers from the 1960s.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This rustic old building is said to be the most photographed barn in America.

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

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.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

When ecosystems collide in the arid Southwest.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A Prada store in the West Texas desert that is never open for business.

A rattlesnake museum showcasing over 30 species, in a century-old building that used to be the general store in this tiny West Texas town.

The start of the group that straightened the teeth of a nation.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.