Washington Square Diner, Greenwich Village, Manhattan
I love NYC diners and Washington Square Diner is one that I've eaten at many times. Like most NYC diners it carries not only typical American cuisine including breakfasts and burgers, it also has some Greek food on the menu. I've been told that they've been in business in that location for more than 40 years now! That's really saying something in New York City.
Oh, they're open 24 hours a day! They are located just around the corner from the famous West 4th Street basketball courts and one block away from Washington Square Park.
Washington Square Diner, 150 West 4th Street