Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

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.

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

Puerto Rico's oldest rum producer started its 140-year-old business with "a little barrel."

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

The world's brightest bioluminescent bay.

A multiversal transit station located right below a highway interchange.

Take a dip in the world's largest mineral hot springs pool.

A remote sandstone plateau named for a legendary cattle rustler.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

Two creeks flow out of either end of this canyon in opposite directions.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Unlike most arches, this geological oddity formed in a volcanic dike.

There are eight natural springs around town, each with a slightly different taste.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

“You better take care of me Lord, if you don't you're gonna have me on your hands.” ― Hunter S. Thompson, Fear and Loathing in Las Vegas.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This spectacular track has run continuously since 1882.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

The highest bridge in America was built for an almost unnervingly small amount of money.