Housed inside a former munitions plant that was once one of the largest in the country.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

The World's Largest Bull.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

A large circus museum with summer performances.

Tirelessly maintained by a Wisconsin man named JFK.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

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

An entire city block built completely out of petrified wood.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

This unique zoo is the only place in the world where you can see all 15 species of crane.

Largest outdoor staircase in the United States.

A 100-year-old chair with joints "cemented by nature."

One North Dakota man's vast collection of rare rocks, polished orbs, and geological wonders.

A crumbling ghost town on the South Dakota prairie.

This steep-walled ravine contains animal-shaped formations made from sandstone.

A museum of the dime museum that features weird entertainments of yesteryear, from feejee mermaids to flea circuses.

A theme park attraction designed to turn your children into LARPers.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

Once part of an extensive network of fire towers, this is one of the few remaining in this Wisconsin forest.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.