The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

2300-year-old Roman road connecting the empire.

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

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

A house of courtship where the Jazz Age's most storied lovers got their start.

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

A 19th-century shrine covered with prosthetic body parts as votive offerings.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

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

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

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

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

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

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Dozens of lights dangle from the branches of what may be the brightest tree in Los Angeles.

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

The famous animator's private station house and man-cave was the birthplace of imagineering.

A common entry point to the Griffith Observatory trail holds its own wonders.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

This glamorous old building is said to have inspired the Tower of Terror.

Historic funicular railway, believed to be the shortest railroad in the world.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.