An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

A Bibliophile's Dream.

These pretty kitties killed and ate as many as 135 railway workers.

The first declared National Monument in the United States.

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

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

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A cemetery housing wild west legends in South Dakota.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A fitting attraction for the corn capital of the world.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A bypass decorated with large wooden troll carvings.

This cave holds a surprisingly colorful variety of geological oddities.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

2300-year-old Roman road connecting the empire.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.