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

This is not your typical jungle gym.

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

An urban forest overtakes what was the greatest failure of utopic urban housing.

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

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

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

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.