A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

This unassuming home was once “grand central station” for the Underground Railroad.

A wartime promise becomes a shrine to Our Lady of Lourdes.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A giant lumpy candle serves as a beacon for this highly scented pit stop.

One of the last remaining covered bridges in the region.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

The lynching and burial site of America's first train robbers.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

The world's largest anatomically accurate brain sculpture.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

Walk in the footsteps of the famed astronaut at Purdue University.

One tree's homage to soles past and present.

Tombstones carved to look like tree trunks are used for multiple generations of family members.

An unknown number of cholera victims are buried in two nondescript graves.

Both funky and traditional, it's the oldest of its kind in Indiana.

The first spinning jail built in the United States is the only one that still turns.

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

This mysterious hill seems to pull objects uphill.

The bespectacled, cocktail-sipping pachyderm is a strange but fitting liquor store mascot.

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

A 250 million-year-old rock formation has earned a rather unique nickname.

This giant spider sculpture made from the iconic car is one giant visual pun.