This mosaic-covered bar is brimming with curated curios.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

This abandoned prison castle has become an imposing gallery of graffiti art.

European castle ruins in an American state park are actually the product of death and grief.

Constructed from bricks salvaged from a former dormitory destroyed in a fire.

The last intact steam engine factory in the United States.

This humble hole-in-the-wall is home to an incredible pig ear sandwich and serious civil rights history.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

A dramatically eroding canyon thousands of miles from the desert.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

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

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

Over 140 boathouses built by miners from the Soudan Iron Mine in the early 20th century overlook Stuntz Bay on Lake Vermilion.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

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

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

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

A jaw-dropping brutalist space church seems to have crash-landed in the middle of America.

A piece of solitude and tranquility in the heart of East Saint Paul.

A Foundry on a Sleepy Street.

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