But who works in this building, and what are they up to?

A piece that harnesses my passion for Richard Scarry
http://goo.gl/a2F7x

and David Macaulay's
http://www.davidmacaulay.com/

glorious cross sectional illustrations and, when finished, a hat tip to Family Circus's only redeeming feature, the dotted line progression map:
http://goo.gl/gLKmQ

By the way, Richard Scarry died of a foot infection in Gstaad at age 74 in 1994.