Minnesota's oldest and deepest mine is now an underground physics laboratory.

Inside this museum resides a boot fit for a giant.

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

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

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

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.

Almost half-way between the Equator and North Pole.

The park is home to the United States's only still-operating Dutch windmill.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Paranormal activity on the great lakes.

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

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The summer home of the largest colony of bats in the world.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

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