A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

This cemetery is all that remains of a school for "wayward" girls.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

An exhibit of items from the mental institution where Mary Todd Lincoln lived after her son conspired to have her committed.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

A large circus museum with summer performances.

This circus town museum recognizes the outstanding clowns of history.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

Amateur taxidermy museum known for its large collection of white squirrels.

A bypass decorated with large wooden troll carvings.

Home with Gothic windows featured in a famous painting.

This cave holds a surprisingly colorful variety of geological oddities.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

One Austrian's singular yard is now preserved as a folk art garden of concrete wonders.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

Once known as the Illinois Asylum for the Incurable Insane.