To celebrate its upcoming mini-series "Houdini", the History Channel has installed interactive art pieces in three different CTA bus shelters in Chicago. These installations allow riders to see how long they are able to hold their breath compared to Houdini. By pressing a red button, it then starts a clock while you hold your breath, as water fills a chain-wrapped Houdini picture inside of a 3-D tank. The installations can be found at Michigan and Monroe, Michigan and South Water, and State and Wacker. For more information, read the full story at