World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

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

148 feet long and in the middle of a verdant forest.

Symbolic attempt to overcome the issues of life.

Moonbows over Kentucky.

An oversized metal construction of Billy Tripp's moods going through life.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

Enormous lake at the bottom of a unique cave system.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

An enormous natural sandstone bridge in Kentucky.

One person's lost luggage is another person's treasure.

More than five miles of underground passageways.

Live long and prosper in Tennessee.

Visit this playground of waterfalls, caves and sinkholes.

This replica of the Greek structure is in the heart of Nashville.

Prehistoric animals decorate this popular outdoor park.

A miniature city built by a single hunchbacked monk.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The world's longest known cave system.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

This structure among the trees was the result of divine inspiration.