Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

A theme park attraction designed to turn your children into LARPers.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

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

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 collection of 1,300 accordions of all shapes and sizes displayed in chronological order.

An oddly poignant roadside attraction celebrating American folklore.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

An old town theater converted into a celebration of the hobo legacy.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

Gambling, boozing, and yodeling animals cover the walls of this dive bar cum natural history museum.

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

A curious sculpture garden and museum in Cochrane, Wisconsin.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

The history of central Minnesota under one roof.

This lone survivor of a regional franchise still slings delicious burgers and colossal servings of fries.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

A stone face watches over the river.

An amazing collection of sculptures and art.

Sculpture garden and miniature golf course blend together in the oversized backyard of a Minnesota sculptor.

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