A Watertown institution is no more; Napoli's Pizza has closed with an announcement on their front door (pictures below) that after about 50 years the owners are retiring. This was always my favorite place to get roast beef subs. Good luck to Agata. I wonder if  they plan on selling the business or if something else is going to move in. On a related side note, the Barber Shop a door down from Naps closed too which means the prominent main block of businesses that people see as they enter Watertown Square now has two vacant spots.