This lab's maddening silence is good for business but bad for sanity.

Funhouse of found art and participatory sculpture.

An amazing collection of sculptures and art.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

This enchanting forest trail leads to ethereal abodes and a giant bird's nest.

An unusual assortment of art, furniture, and other curiosities.

World's largest carved onyx figure stands as a tribute to enduring peace.

These curious caverns have been home to mushrooms, gangsters, and disco.

The first artificial white water river course in North America cuts right through an Indiana city.

Week-long festival in the baby food capital of the world.

An oddly poignant roadside attraction celebrating American folklore.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.

A lavender labyrinth so large it’s visible on Google Earth.

This midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

A lovely hidden waterfall right off the highway is well worth a stop.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

Moving, mind-blowing metal sculpture work of an outsider artist.

The NBA player's elaborate former home is now a ghost of its old glory.

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

To find the "unicorns of the deep" you've got to go downstairs.