A wondrous old library overlooking the nation's capital.

Its columns were all carved from the same white oak tree.

You can swim in these highly salty, mesmerizingly blue lakes in the Atacama Desert.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

Nestled among the living residents is the final resting place of an apothecary plague victim.

This retro underwater observation tower would make the perfect lair for a sea-loving villain.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

This museum explores the grim reality of life in the earliest British colonies in America.

Historical figures from New York City's Catholic community reside in Midtown.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This hidden bridge is where local children leave gifts and messages for the island's fay folk.

An important Mayan religious and trading center dating back to 200 BC.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Crammed into several rooms of a Staten Island home, this museum is a vodka-soaked paean to the pleasures of drinking.

The colorful stairs are made with marble from the world's major quarries.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

The ruins of the first Spanish settlement in Puerto Rico.

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

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

Eat a tasty meal in the house where John Steinbeck was born.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A hidden bar inside an ad agency has a deliberately misleading name, so employees can stay late under pretext of paperwork.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.