Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Hear the quietest sound from across the dome.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

One of the largest publicly funded mural in the country is one city's love letter to itself.

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

The above-ground crypts at this Catholic cemetery face north-south instead of the usual east-west.

The art deco colossus played a role in war and medicine aside from hosting the iconic Louisiana Hayride.

A museum dedicated to the lovable crime couple Bonnie & Clyde, just a few miles away from the site of their early demise.

The short-lived history of a new republic and British control in West Florida.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

This sculpture may be the only known depiction of a man who helped finance the American Revolution and inadvertently created the dollar sign.

This sinkhole was created by a tragic industrial accident and continues to ravage the surrounding landscape.

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

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

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

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

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

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

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

The final resting place of New Orleans' most famous voodoo priestess.