Arturas Rosenbacher (@USAanon) shot this photograph of windows in the building where the Chicago Board of Trade is located. The CBOT was established in 1848, and is the world's oldest futures and options exchange.
There's a related article at the Village Voice.
Boing Boing editor/partner and tech culture journalist Xeni Jardin hosts and produces Boing Boing's in-flight TV channel on Virgin America airlines (#10 on the dial), and writes about living with breast cancer. Diagnosed in 2011. @xeni on Twitter. email: firstname.lastname@example.org.