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

Journey through the largest remaining peat bogs in the contiguous United States to see the wilderness as it once was.

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

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

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

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 picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

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

A mapping error in the 19th century made loggers think this section of the forest was underwater.

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

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

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

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

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