Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

An antiquated German apothecary on Chicago's North Side.

A speakeasy takes on Chicago's drinking culture.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

A former taxidermist has turned his old shop into a folk art mecca.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

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

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

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

The juke joint where legendary soul artists ate, drank, and made merry.

This homegrown adoption center offers a wonderland of feline companionship.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

More than five miles of underground passageways.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Enormous lake at the bottom of a unique cave system.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

John Hendrix predicted the creation of the "Secret City" built as part of the Manhattan Project.