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

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

The curiosities and wonders of pharmacy in a delightful historic building.

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

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

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

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

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

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

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

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.