This giant iron playfully pays tribute to an early 20th-century architectural trend.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

An early life spent in this "Old Kentucky Home" inspired the writings of North Carolina's most famous novelist.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

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

Whether his story is true or not, Stiffy Green is the most beloved bulldog in all of Indiana.

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

Nature and art meet in this curvy creation

The building is topped by a Statue of Liberty statue whose torch has stayed burning since the museum opened.

This stately clubhouse has showcased German-American culture for over a century.

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

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

A hollow cement depiction of time's inexorable effect on the human body.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.