Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

An important Mayan religious and trading center dating back to 200 BC.

The remnants of an archaeological camp stand within Tikal National Park.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

You can swim in these highly salty, mesmerizingly blue lakes in the Atacama Desert.

Now containing the bones of the actual conquistador, instead of someone else.

This stone complex marks the urban center of a lost civilization.

A Christian monastery stands on what was once a holy Incan temple.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

An Inca spa, military outpost or maybe… both?

Sleep in a glass pod dangling off a cliff.

It took 82 years and four different plaques to finally get the story right.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

Let Ouray’s tallest waterfall sweep your breath away on a dealer’s choice of scenic hikes.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

See just what life was like in a 19th-century prospecting town.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

Some 46,000 years ago, a volcanic eruption led to a flooding event that carved this short canyon with steep vertical walls.

An ordinary rancher stumbled upon one of the world’s largest collections of Pliocene horse fossils.