This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

Train cars and railroad artifacts abound at this restaurant devoted to railway history.

This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

This former office building has been transformed into an immersive music venue and art space.

A large collection of motorbikes with some impressive gems.

One of the largest collections of merchandise from the famous British sci-fi show can be found smack in the middle of Indiana.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

The world's largest talking cow would like to tell you about the benefits of 100% Wisconsin dairy products, if only she still could.

A hot dog stand where the heads are just as hot as the dogs.

Hot Doug's "Hot Dog" Stand.

With over 5,000 champions, the Hall of Fame continues to draw amateur eaters.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

The 40-year-old machine serves soda quicker than you can catch it for a mere 75 cents a pop.

The only place in America where anyone who wants can shovel coal aboard an antique train.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.