A New England curiosity cabinet, one hundred years on.

In 1953, a group of Wisconsin high school students helped build a hospital by collecting over a million pennies.

A Milwaukee museum provides an unsparing and ultimately empowering look at the Black American experience.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

This huge stew pot is the focal point of the "Community Soup" event, which honors tradition and soup.

Almost half-way between the Equator and North Pole.

Tirelessly maintained by a Wisconsin man named JFK.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.

More than 5,000 contemporary and "historic" mustards from around the world.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

The center of the only hemisphere that awards visitors with a commemorative coin.

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

Population: 1.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A popular rock that acted as a waymarker for American pioneers.

A small Wyoming town is home to the state's oldest-operating soda fountain.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

An architect's childhood fantasy treehouse made real.

Native Americans built this circle of stones, which was used to predict astronomical events.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

This tiny, triangular block has held the world record since 1964.