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

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

One of the world's earliest skyscrapers.

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

An abandoned factory along the Mississippi coated by a giant mural.

A kitschy, creepy St. Louis mainstay.

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

Man-made geyser that rises to the exact height of the Gateway Arch.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

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

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.