I know it sounds like a joke, but they've quietly turning Staten Island's Fresh Kills Landfill -- yes, that's its name -- into a city park. The landfill was open for about 50 years, took in most of New York City's waste, and grew to be one of the largest garbage dumps in the entire world.
@avi actually kill comes from dutch! and murder also i think comes from dutch, by way of "mudder". the murderkill river's name is entirely unrelated to violence!