One of the world’s largest living advertisements is made out of pine trees.

Symbolic attempt to overcome the issues of life.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The world's largest collection of the world's largest objects is in one small Illinois town.

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

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

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

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

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

A medical facility that has been kept frozen in time.