The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

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

The only home of the famous French impressionist painter open to the public is now a museum and bed and breakfast.

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

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

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

The stone labyrinth in this New Orleans city park was laid to symbolize healing in the wake of Hurricane Katrina.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

All that remains of this small town is its mass grave and a myth of a voodoo priestess who predicted its demise.

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

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Turning night into day in Victorian-era Austin to thwart a serial killer.

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

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

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

New Orleans' famous cemetery, located on the site of a former race track.

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

A snapshot of the city's fascinating voodoo culture.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.