A mapping error in the 19th century made loggers think this section of the forest was underwater.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

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

This large midwestern cavern features impressive rock formations and an underground waterfall.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

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

A stone face watches over the river.

An amazing collection of sculptures and art.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

These curious caverns have been home to mushrooms, gangsters, and disco.

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

The basement bowling alley of this St. Paul dive bar is decorated with thousands of dollar bills.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

20,000 pieces in a Frank Gehry-designed building.

This lab's maddening silence is good for business but bad for sanity.

Secret hideaway for an alternative beach experience.

A riverside park built around the ruins of a massive dam that collapsed in 1909.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.