A state park that once served as an important river crossing, and now offers protected lands for endangered plants and animals.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

This tiny Minnesota city tried to secede from the Union as a last-ditch effort to fix its crumbling water system.

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

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

From burial ground bocce ball court.

Thousands of people walk over this fantastic work of art every day, but how many notice it?

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

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

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

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