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

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

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

Locals dubbed this abandoned abode the "gingerbread house" because of its odd architecture.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The world's largest anatomically accurate brain sculpture.

One tree's homage to soles past and present.

One-layer pyramid in Indiana.

The only freestanding table rock formation east of the Mississippi.

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

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

One man's vision and a labor of love of many.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

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

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

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

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

Symbolic attempt to overcome the issues of life.

If astronomy had a ghost, it would look like this observatory.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

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

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

This historic graveyard was partially paved over to create a streetcar line.