Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

The last SR-71 ever constructed.

Kay Andrews's recipe was so good, her family immortalized it in stone.

An empty mine that some believe will suddenly be filled with fortune and treasures at the end of the world.

Largest man-made excavation on earth!

It was once used as a classroom to teach mining skills to local high school students.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

This town is home to the world’s largest arch constructed entirely of elk antlers.

An architect's childhood fantasy treehouse made real.

Limestone caves with spectacular showcase chambers.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

The smallest country in the world.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

The biggest solar telescope in the world helps reveal the secrets of our sun.

For those going through a life transition, a place to leave behind a piece of your former self.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

It's where the final scene of the beloved Tom Hanks movie was filmed.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

The best Tiki bar in Las Vegas.

A new kind of theme park for adults off the Las Vegas Strip.

Water of undetermined depth has attracted rare fish and cult leaders alike.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

An important piece of history from mankind's journey to the moon sits in the lobby of a government science lab.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.