This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A layered tribute to the work of mosaicist Isaiah Zagar.

Illegal drag racing two stories beneath Chicago’s streets.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

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

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A Beaux-Arts triumph set to become Ford's innovation campus

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

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

A wartime promise becomes a shrine to Our Lady of Lourdes.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This chimerical bridge/tunnel appears to dead end right into the sea.