This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

These red and black houses were awarded to the firefighters who saved their city from an enormous blaze.

This colorful gate stands as an entrance to the walled city of Old San Juan.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

Archaeological sites and great food inside the island's largest mangrove forest.

The ruins of the first Spanish settlement in Puerto Rico.

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.