A smoke stack so large, the Washington Monument could fit inside!

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

An archeological treasure trove stumbled upon by a couple of children.

Giant topiary dog once played a role in a terrorist bomb plot.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

Birdhouses, peacocks, animal sculptures, and a graveyard are all found along this eclectic nature trail.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

Jail from the 19th century that was built by inmates.

Home to the deepest rift anywhere on Earth.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.