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

For over a century, it was a crucial center of mental health treatment and also the source of many local legends.

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

A stone face watches over the river.

Eight "Guardians of Health" protect this art deco water tower from pollutants and bacteria.

The Real LegoLand.

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

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

A Perpetually Under construction Park.

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

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

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.

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

Enter the Forest of the Elves.

An architecturally-focused antique shop.

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

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

An old soap company building now houses one of Minneapolis’s oldest independent non-profit art galleries.

For posterity, a singular achievement: 3,780 hours of dancing.