The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A giant Troll lurks under one of Seattle's oldest bridges.

Discarded animal sculptures stand forgotten by an abandoned aquarium and water park in Bosque de Chapultepec.

The first park built over a freeway is a brutalist masterwork.

A community gathering place that once housed half-ton tanks and the World's Fair.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

Murals made with millions of colorful stones adorn the abandoned building.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

Home to a protest movement, a bombing, and a dramatic change in labor history.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

A hollow cement depiction of time's inexorable effect on the human body.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Former meatpacking facility turned vertical farm and sustainable business complex.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.