A chilling disappearance (and rescue) of a child uncovers a geological mystery.

A set of tall pillars and alcove-like rooms that are significant to the Miami people of Indiana.

The humble Hoosier roots of a famed Broadway composer.

This relic of transportation history still stands in this Indiana city.

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

Low-frequency noise compared to an idling train can only be heard by some of this industrial town's residents.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

A bloodstain from "the wound of the transverberation of the heart."

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

The titular fictional logger only inhabits this otherwise historically focussed museum via a piece of fiberglass kitsch.

The tragic death of 19-year-old Mabel Tainter in 1886 led to the construction of this unique Victorian-era theater in the northern woods of Wisconsin.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A working miniature city designed to teach kids about safety and presumably city planning.

Art Deco stylings conceal the true nature of this bridge.

In the country around Buttonwillow, California, a marker commemorates a revealing moment in the story of a water colony from the fictional Kcymaerxthaere that sought independence.

An antique store houses the last operational diner from the defunct department store chain.

The Route 66 institution that inspired Taco Bell also served as an important headquarters for Mexican-American social movements.

The only museum and archive west of the Mississippi that is dedicated to the study of Abraham Lincoln.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.