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

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

The highest point in Indiana is curated by an Eagle scout but may be in danger of losing its record to a nearby garbage pile.

Nature and art meet in this curvy creation

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

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

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

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

A unique rock formation that only a few have managed to venture inside.

Landscape of bizarrely shaped desert mountains and innumerable rock carvings.

Site of the greatest known waterfall that ever existed.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

An obscure waterfall that looks like something out of a fantasy novel.

An impressive collection is dedicated to the legendary beast.

A grove of "candelabra redwoods" deep in California's Lost Coast.

A fire lookout atop a glacial pinnacle is reached by climbing three vertiginous flights of stairs.

Peek into a cave of giant, glimmering crystals.

It's safe—and permitted—to walk across these twin natural sandstone arches.

A century-old church is now a space museum with a treasure trove of Soviet space items.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.