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

This quirky roadside attraction provides insight into Minnesota's logging history.

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

Home to part of the world’s largest private collection of original manuscripts and documents.

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.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

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

A larger-than-life version of the hat beloved by hunters, outdoorsmen, and Holden Caulfield.

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