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

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

It's a pretty creepy lock-up.

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

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

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

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

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

One of the oldest, tallest, and most haunted lighthouses in America.

America's first wax museum opened in 1948.

Built around 1723, this is the oldest surviving home in the U.S.'s oldest colonial city.

These ruins are all that remain of what a Spanish barrack that likely housed a quarry overseer, masons, and stone cutters involved in the construction of the Castillo de San Marco.

The site of Martin Luther King Jr.'s arrest as he attempted to have lunch.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

Built to replace a house destroyed by a hurricane, this home is made entirely of shipping containers.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

Willy Wonka would love this weird half-a-home.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.