A large collection of motorbikes with some impressive gems.

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

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

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

What is it about mushrooms that makes people wish they lived inside of them?

Inside, ancient treasures. Outside, modern contradictions.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

The world's third-largest scale model of the planets.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

In the hometown of the Grand Ole Opry star is a larger-than-life memorial statue made entirely from chicken wire.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

Erosion and time have created a naturally-formed water park.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A modern-day wunderkammer dedicated to Indianapolis history, Afrofuturism, and musical vibrations.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

The first full-scale tunnel built in America is short but scenic.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

A floating museum that was sunk by a flood and left to rot in the tides.

Man-made geyser that rises to the exact height of the Gateway Arch.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

The small cave that housed Tennessee's "first citizen."

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