Thermal springs underneath the seabed provide the heat and bubbles for these beachside natural hot tubs.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

This village surrounded by breathtaking waterfalls is one of the wettest places on earth.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

A rare memento of a lost Indigenous group.

You can still see bits of the camouflage used to hide this Art Deco building from bombers during World War II.

This unique sculpture proved invaluable when it saved a train from careening off the tracks.

At this small shop off a dirt road in the forest, the specialty is eel the owner caught and smoked himself.

Curious rock formations in a tiny Kansas state park.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

At this airport "microcinema," you can catch a film before you catch a flight.

This statue of Buddha has a distinctive hairstyle meant to represent an unfathomably long period of meditation.

An islet filled with wooden houses where the open sea meets a lagoon.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

A miraculous natural phenomenon known as "the spring that breathes."

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Native Americans built this circle of stones, which was used to predict astronomical events.