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

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

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

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

A local scoured more than 1,000 acres for stone to create his masterpiece.

One of the few surviving "Wigwam"-themed motels.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

The country music legend's grave is surrounded by Astroturf because fans kept plucking out the grass.

Cadillac where country's first big star was found dead.

The whimsical construction on the roof has given rise to many a Montgomery myth about its contents.

A collection of huge Pre-Colombian structures in Alabama.

Orr Park's dead trees have been carved into a menagerie of whimsical visages.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

One person's lost luggage is another person's treasure.

A miniature city built by a single hunchbacked monk.

This now-deactivated naval base defended the Florida coast for centuries.