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

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

The world's longest known cave system.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

A wonderland of caves in eastern Iowa.

This pebble beach is so beautiful that taking its rocks is against the law.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Millions of years of erosion created the feature for which this rock formation is aptly named.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Architectural elements and building materials for this house were transported from Salisbury, England.

Millions of dollars worth of sculpture decorate this Iowa city center.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

A monument to one of the few Olympic flames ever to be lit outside of the host city.

A statue honoring 44 continuous years of greeting passing ships.

The island residents are known for taking their quirky sense of humor with them to the grave.

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.