A miscalculation turns a very shallow freshwater lake into a very deep saltwater lake.

A mysterious find dredged from Louisiana waters.

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

The tallest monument in a historic New Orleans cemetery was prompted by romance and dash of pettiness.

Religion and personal struggle gave birth to this collection of concrete angels.

This museum chronicles the history of a leprosy quarantine hospital that then became a refuge.

The beautiful, fruit-covered facade hints at this building's former life.

A Cajun-style Christmas on the river also involves sky-high pyres and explosives.

This Art Deco airport was once deemed “the air hub of the Americas.”

This strange example of the Egyptian Revival architecture trend now holds Mardi Gras floats.

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

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

The crumbling ruins of this southern American fort have survived storms, war, and cults.

"If she'd leave us alone, we would have a happy home, sent from down below."

A swamp and garden tour featuring local wildlife and exotic botanical specimens from around the world.

This strange, small castle on the bayou has withstood the test of time and weather.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

A haunting, yet lovingly hand-hewn potters' field full of graves that flood with each heavy rain.

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

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

An abandoned warehouse turned art sanctuary in New Orleans.

This macabre shop, filled with art, oddities, and taxidermy is hidden in the heart of the French Quarter.

It's clear this abandoned Art Deco gem was no ordinary cleaners.