I had been living in Brooklyn Heights for some time and Long Island Restaurant has been closed for as long as I could remember. Then one day, the sign was lit up and not long after the new owners had resurrected the spot with the promise to the previous owners the name and sign never changes. Order "A Martini" from the menu. It's divine. As are the french fries. They're double fried.
I think it takes place every Saturday morning to afternoon, vintage shopping while having a great view at the Manhattan skyline from the East River State park. You will find lots of vintage shops and warehouses around this area of Williamsburg.