Beautiful:

Retired subway cars being thrown into the ocean.

This has made it's way through my twitter feed all week, but the images--and the concept--are so striking, I couldn't resist sharing.

For more than a decade, the New York Metropolitan Transportation Authority has treated the Atlantic as its very own graveyard, tossing thousands of old subway cars off a barge to rust away on the ocean floor. An environmental crime? Hardly. The program creates habitats for marine life from Georgia to Jersey and gives New York’s aging subway cars a vibrant (and free!) retirement home.

Now I want to see photos of the marine life making use of all these old cars.