A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

The world's largest anatomically accurate brain sculpture.

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

Colorful collection of antique musical oddities.

Ornate limestone building now filled with geologic specimens, and more.

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

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

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

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

Unique tower has outlasted a takeover of the company.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.