This piece of awesomeness comes from the xkcd blog and neatly ties together North America’s urban rail systems using some fun, albeit questionable, geography.
Under this scenario, one leg of the Gold Line would run to Chicago and the other San Francisco; two pretty options if you fall asleep and miss your stop in the San Gabriel Valley or East L.A. The Red Line would also visit San Francisco.
The Green Line, however, seems to get the short end of the stick with the Norwalk end of the line terminating in Cleveland and a South Bay Extension swinging east to Philadelphia. The Blue Line would also visit Philly via Long Beach. Hopefully there will be stops in Colorado ski country, Yellowstone and Cincinnati enroute with the Cincy station including a Skyline Chili counter.
Hat tip: Carter Rubin and Alex Boekelheide.