Arrr! The most authentic collection of pirate artifacts in the world... matey.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The massive machine creates cracking displays of indoor lightning.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

The ancient tomb acts as a calendar that keeps perfect time.

A glacier pocked with ice caves and surrounded by rainforests.

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

Hundreds of personalized inscribed planks make up this historic boardwalk.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

This supermarket is suspended 25 feet above an interstate highway.

A historic bridge with a lovely acoustic anomaly.

Mysterious stone tower featured in many alternative histories of the New World.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.