Catch beautiful views at the graffitied observation deck on this mountain top.

This might be the most famous abandoned hotel in the Caribbean.

This forest school's long history lets today's visitors experience resource management learnings in a beautiful environment.

Visit a World War II era coastal battery in the center of one of Hawaii’s main tourist destinations

This historic Mexican convent is home to a tree that grows crucifix-like thorns.

Where Saint-Martin ends and Sint Maarten begins (or vice versa).

One of the oldest, tallest, and most haunted lighthouses in America.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

A stretch of highway even lonelier than the so-called "Loneliest Road in America."

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

One of the best-preserved Native American mounds remaining in the southern United States.

An idyllic mineral hot springs facility with a more-than checkered past.

A beautiful example of 18th-century engineering still standing tall.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

A historic dam made famous for its turbines and feature in a Hollywood classic.

The mysterious 855-foot zigzagging stone wall has been baffling people for centuries.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

Two Civil War-era cemeteries stuck between runways at the world's busiest airport.