A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

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

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

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

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

On the clock tower at St. Anne's Church in Cork, you never know which face is telling the truth.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The world's first interactive human body museum also serves as a chair for a giant orange man.

World's largest collection of serial killer artwork and other macabre exhibits.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A sprawling nature preserve harbors the world's only living dragons.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

A chance to follow in the footsteps of the word's most legendary animator.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

The final resting place of infamous outlaw Clyde and Marvin Barrow.