A futuristic-looking beach house built for the owner of a snack food brand.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Indents in the pavement are all that remain from a grisly death machine in Paris.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

These unusual houses look like giant boats that washed ashore on a residential street.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

The abandoned remains of this once-thriving hotel looms over the city, awaiting an uncertain future.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

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

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

This small fort played a huge role defending Puerto Rico’s capital city.

A multi-storied adobe complex has been inhabited for more than a thousand years.

This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

The oldest standing structure in downtown San Diego.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Art Deco stylings conceal the true nature of this bridge.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

A grand entrance to one of the world's smallest Chinatowns.