The ruins of this former mining boomtown once housed over 3,000 people. Now, the population is two.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A unique post-modern public space in the middle of the Warehouse District in New Orleans.

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

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.

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

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.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A snapshot of the city's fascinating voodoo culture.

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

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

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

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

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

Legend says a primate-like cryptid prowls this otherworldy sliver of the Louisiana bayou.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

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