A factory in Milwaukee where poop is reclaimed… and recycled.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

Also known as the Osaka Garden, this garden was originally built in 1893 as part of the World's Columbian Exposition.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

How did a 2,000-year-old Roman column find its way to a Chicago park?

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

All of Chicago's wood-paved streets are long gone but two alleys remain.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A 30-foot-tall sculpture pays homage to what was once the Steering Wheel Capital of the World.

These dramatic cola-colored falls have appeared in a poem by Henry Wadsworth Longfellow and a song by Sufjan Stevens.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

On the shores of Lake Superior, a small group of monks makes sacred sweets.

This missionary's legacy looms large over the Upper Peninsula of Michigan—literally.

This freshwater spring fills with 10,000 gallons of water per minute.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

A source of civic pride, though the reason for its construction is unknown.

The first home and studio that belonged to the famous architect.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

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