Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This historic national park is covered in the stunning ruins of red rock pueblos.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

Ancient human, animal, and geometric figures drawn in the earth.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

Breathtaking and huge 430 year old maps of Italy.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

A miniature train-ride through Slovenia's largest cave system.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

This one-time health resort was used by aristocrats around the world.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This bare tree might not have leaves but it is constantly clothed in festive decorations left by mysterious local benefactors.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

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

This haunting tombstone comes complete with a heartbreaking story of love and loss.