Katz's Deli, is a Jewish kosher style delicatessen on the Lower East Side of New York City, located at 205 E. Houston Street, on the south-west corner of Houston and Ludlow Streets. Since its founding in 1888, it has become very popular among locals and tourists alike for its pastrami sandwiches and hot dogs, both of which are widely considered among New York's best. Each week, Katz's serves 5,000 pounds of corned beef, 2,000 pounds of salami and 12,000 hot dogs.
Aside from the advent of refrigeration, little has changed at Katz's Deli since then, as it still retains a grungy sheen to its throngs of tourists, regulars and celebrities, many of whose signed framed photographs are to be found adorning the walls. Several U.S. Presidents have been served including Jimmy Carter, Ronald Reagan and Bill Clinton. Morty Weiss patron of over 80 years certified that the hot dogs as "the best in the world."
During World War II, with the owner's three sons overseas and a family tradition of sending food, Katz's encouraged parents to "Send a Salami to Your Boy in the Army." To this day, they will still ship anywhere in the world. It became one of the deli's famous catch phrases, along with "Katz's, that's all!" which is still painted on the side of the building.
Now back to Harry (played by Billy Crystal) and Sally, the table at which they sat for the fake orgasm scene, is marked with a sign that says "Where Harry met Sally.......hope you have what she had!" Nothing else needs to be said really is there other than, perhaps, go there and find out for yourselves.