New York City's smallest piece of private property.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

This vacant church in the Financial District was once the heart of New York's first Syrian immigrant community.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

An ever-evolving wall of graffiti art off East Liberty Street.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Over a thousand feet beneath the Detroit streets is a subterranean metropolis few are allowed to enter.

Abandoned concert venue legendary for its rock counterculture.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

Standing guard on top of an old, vacant ice cream shop.

Once a bastion of its community, this gothic cathedral now stands as a haunting ruin.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Enormous small-business mecca in the Midwest, serving dozens of artists.

Advice-columnist's bell tower, paid for with pennies.

Glass and concrete building designed by Albert Kahn.

The pieces in this sculpture garden are made from demolished buildings that were once landmarks of Motor City.

Detroit housing collective working to create an "environment for revolutionary change."

Concrete igloos standing across from what remains of the Michigan Central train depot.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.