This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

Built in 1931, this small passageway is believed to be the first modern skyway.

This old residential building was once the largest flour mill in the world.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

This iconic water tower and failed bandstand is open for panoramic views once a year.

One of two giant blue cockerel statues erected with an intentional double meaning.

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

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

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

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.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

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

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

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

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

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

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

Inside this museum resides a boot fit for a giant.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.