Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

The world's largest collection of the world's largest objects is in one small Illinois town.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A six-story-tall golden pyramid, surrounded by a moat.

Home to a protest movement, a bombing, and a dramatic change in labor history.

A chessmaster's dream destination.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This quirky local sculpture is quite literally a fish out of water.

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

Eclectic collection of rare and beautiful stones in a historic home.

A historic and oft-filmed prison stands in a Chicago suburb.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

This is not your typical jungle gym.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

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

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Curious cave that stays a cool 56 degrees all year long.

Community bookshelf of 25-foot-tall book spines.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

This abandoned prison castle has become an imposing gallery of graffiti art.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.