New York City Tourism + Conventions - Tom's Restaurant on 112th Street & Broadway on Manhattan's Upper West Side. Seinfeld fans will, of course, recognize it as the exterior of "Monk's Cafe."
Tom's Restaurant - Wikipedia
Seinfeld Super Bowl Ad
A Food Tour of Seinfeld's New York - The New York Times
The real-life regulars of the world-famous 'Seinfeld' diner
Tom's Restaurant: A Documentary About Everything' Is Mostly About Nothing - Eater
Tom's Restaurant | New York NY
Tom's Restaurant | New York Magazine | The Thousand Best