The Art Deco Silver Screen.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

A stone face watches over the river.

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

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

A futuristic climate change study is nestled deep within this public land.

Journey through the largest remaining peat bogs in the contiguous United States to see the wilderness as it once was.

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.

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

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

Secret hideaway for an alternative beach experience.

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

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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

When flour explodes, it's not a pretty sight.

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.

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

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

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

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

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

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

Half of a waterfall goes into the river while the other half seems to disappear.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.