Fifth avenue is the supply route to the downtown hospitals. UPMC (University Pittsburgh Medical Center) is the main employer in Pittsburgh. So, every 15 minutes or so an ambulance comes whizzing past our appartment. Which isn't sound proof at all (single pane windows, paper thin walls) the sirenes are deafening. We are not used to this at all. Of course now, just before we leave we got a bit used to it ;-)
