The Black Keys really rocked the house back in 2008 when they played quite an usual concert locale in the heart of Brooklyn, N.Y. -- a gigantic abandoned pool. The pool, which closed in the '70s when the Big Apple was in the midst of a budget crisis and became overrun, has since been fixed up in a multi-million dollar renovation and now is filled with water again, not excited Black Keys fans. But for one summer not too long ago, it was home to some of the coolest concerts around.