This abandoned mine offers a glimpse at what life was like for those who came to Alaska seeking Gold Rush riches.

This decommissioned DC-3 now forever points into the oncoming wind.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

This spot along the 23.5 degree north parallel marks the northern boundary of the tropics.

Once a Catholic mission, this small town tucked between the ocean and the mountains is now a magical spot for art and history lovers.

This metal church may or may not have been designed by Alexandre-Gustave Eiffel.

Along a California highway is a kind of Jurassic Park made of metal.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

The final resting place for an internet icon.

A reproduction of earth's many biomes.

Some of the Old West's most notorious outlaws frequented this mining town.

Home of the International Space Hall of Fame.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

This natural spring is the winter home to the largest gathering of manatees in the world.

This simple, broken column marks the final resting place of one of America's most famous explorers.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

These aggressively sustainable art homes look like something out of 1970's science fiction.