A spooky defunct railroad tunnel now part of a sprawling trail.

A haunting army of decomposing, moss-covered stuffed animals and dolls guard this swinging truss.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

This Minnesota town celebrated the state's 100-year anniversary by creating a massive ode to nature's smartest bird.

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

When waves crash onto this section of beach, the rocks sing a song.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

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

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

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

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

A fairytale art house in the middle of Wisconsin.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Homemade outdoor church and sculpture garden decorated with glass shards.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

Five acres of divinely inspired folk art.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

Vikings and Evangelicals have both had a hand in this replica medieval church.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

This cave holds a surprisingly colorful variety of geological oddities.

A bizarre house filled with an astounding array of collections.