The oldest surviving presidential residence in the United States.

This elaborate towering structure was once famed for its revolutionary height.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The world’s first penitentiary, meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

Transport yourself to the 1980s era of video games at this themed restaurant and bar.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Not quite the menace it once was, this monster still has some chops.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

St. Augustine's record-setting narrow street was designed to protect against pirates.

A building so large that it has its own weather.

Like Mardi Gras, only everyone's a pirate.

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

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

An 18th-century Spanish watchtower made entirely of seashell and concrete.