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

The first hand-illuminated, hand-written bible since the invention of the printing press.

Every winter, dozens of otherworldly ice structures sprout up from a rigged up artesian well.

An unusual assortment of art, furniture, and other curiosities.

A treehouse assailed by the elements and the government, now gone.

A hidden oasis in the heart of Minneapolis is also an Important Bird Area.

Secret hideaway for an alternative beach experience.

A fence constructed completely of skis on Monroe Street.

The only arched bridge made of stone on the entire Mississippi River.

The oldest continually used church in Minneapolis also sells great meat pies.

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

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

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

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