THE BALLOON MAN

Riding the Rails to the Circus Ring

The Blue Unit, one of Ringling's two circus trains, rolling into Denver. Railroad enthusiasts often track the routes of the Blue and Red Units on Internet forums and turn out to photograph and videotape the nearly mile-long trains as they pass by.Credit: Luke Sharrett for The New York Times

Click on this link to see the slideshow--
http://www.nytimes.com/slideshow/2011/05/15/us/CIRCUS.html