Arlington, Massachusetts!
The Reservoir
If you like filth, and I mean REALLY like filth, then cmon down to the Arlington Rez. It's the most disgusting pool of disease you've ever seen. But get this, people pay good money to swim in this thing. Apparently we can't afford a beach, so we decided to use dirt to section off a part of a pond that people use as a big wet dumpster. Fun on a bun...