With some 500,000 books across five buildings, this bookstore is a reader's paradise.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

The intriguing personal collection of a professional demon-chaser.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

Hidden on the seventh floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

The second oldest continuously operating bar in Louisiana.

A museum and shop on Bourbon Street located in the French Quarter.

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

An ancient iron pillar in Delhi that seems to be rustproof.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

An Irish cemetery filled with victims of political strife and violent conflict, including the grave of Bobby Sands.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The world-record holder for the longest bridge stretching continuously over water.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.