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.

The only arched bridge made of stone on the entire Mississippi River.

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

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

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

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

This massive roadside mascot was the first version of the giant to illustrate his butt.

Enter the Forest of the Elves.

An unusual assortment of art, furniture, and other curiosities.

20,000 pieces in a Frank Gehry-designed building.

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

This lab's maddening silence is good for business but bad for sanity.

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

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

A museum within a museum, devoted to history's most questionable medical devices.

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