Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A county library in rural Ohio houses one of the finest mineral collections in the world.

This turn of the century jail once held Charles Manson.

Remnants of 19th century vigilante justice.

A collection of relics from the Spiritualist Camp Chesterfield.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

A medical facility that has been kept frozen in time.

This moving cemetery sphere is a slowly rolling stone.

Thousands of unique minerals, including some of the most impressive fluorite crystals in the world.

One of the largest collections of holy relics in the country.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

This mysterious hill seems to pull objects uphill.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

This university transit system is a 1970's vision of the future.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

The final resting place of the most famous sharpshooter.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.