A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

One of the oldest continuously-operated gay bars in the United States is allegedly haunted by Truman Capote and Tennessee Williams.

How would you like to dine in the same room where some of the Titanic's victims were embalmed?

Home to New Mexico's longest bar, this watering hole also has a mining museum and a haunted history.

This kitschy tavern is also home to rare early editions of "Treasure Island."

This location of a Mexican chain restaurant has a unique location: an old jail.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.

A unique local art exhibit that has continued to grow since 1989.

Green labyrinth formed by a karstic maze hidden in a preserved oak forest.

Small French town or alien garage?

French commune at the heart of conspiracies.

The way that light hits a stained glass window on a specific day is one of many "clues" to a mysterious treasure.

Out of a labyrinth of abandoned tunnels and stops, this Queens subway station is arguably the most mysterious—if it exists at all.

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

The first skyscraper to include a Ferris wheel built into the facade.

It's unclear what caused the fire that led to this opulent hotel's demise.