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

A stunning landscape of bunkers that once stored chemical weapons.

A house carved into a rock in the 1940s.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

100 year tradition of fist fights, marked by marble footsteps.

An ancient knight and a symbol of the city's freedom.

The world's largest Holstein cow.

Gargoyle head that brings good luck.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A monument to the center of the North American continent may be off by a few miles.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

See massive fossils that are over 200 million years old in northeastern Arizona.

Home to the deepest rift anywhere on Earth.

A trading post in the North Pole where children send letters.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Southern Italy's spinning top village.

Go inside to really appreciate this 500-year-old technological masterpiece.

The short oil boom of Venice Beach, and its swift removal from the tourism-laden landscape.

An extraordinary mixture of natural beauty and man-made phenomena.

A beautiful 62-acre Catholic shrine and botanical garden.