Every year the Chicago Transit Authority runs a special Holiday Train in the weeks leading up to Christmas. It features red and green lights, as well as a flatbed railcar with Santa Claus on board. CTA employees are dressed like elves. I've never been on this train, but I once saw it out the window of our guest bedroom (known as "the Train Room").
Yesterday, for the second time in three years, the Holiday Train derailed... in the exact same spot! Wendy McClure, author of I'm Not The New Me, was there and took pictures. (hat tip to Gapers Block)