This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Early habitat dioramas and home of the elusive gaff, the skvader.

It houses the remains of a 17th-century version of the Titanic.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

Ornate, dome-topped cenotaphs fill this royal crematorium.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

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

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

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.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.