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

One of few surviving standpipe water towers in the U.S.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

Less a museum than a bizarre fantasy world created by artists and engineers.

One of the world's earliest skyscrapers.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

A plaque on the side of a parking garage marks the burial place of a great Ottawa chief.

The eccentric and colorful pavilions of Tower Grove park are a beloved and overlooked symbol.