A reader sent us some photos of retired subway cars traveling by barge to their watery graves. Once hitting the correct latitude they're dumped overboard to create natural reefs. Earlier this year the reef program proved to be too popular in Delaware, where subway cars were sent on the MTA's dime. Reportedly they're adding tanks, refrigerators, shopping carts and washing machines to the ocean floor in order to expand the reef.......

Art by John Blackford and James Fisher, photo courtesy John Barnes. The decision to create artificial reefs off Delaware's coast using discarded “Redbird” subway cars from New York City has proven so successful that marine officials are struggling to cope with overcrowding. Since the state first began dropping the cars to the ocean floor, the formerly barren area has become an underwater metropolis for countless tuna, mackerel, flounder and bass. And with that comes......