The Empire State, the Statue of Liberty and Katz’s Deli -- all icons of New York City. And if you have traveled to the city that never sleeps, it’s more than likely ythat ou passed or went into the famous deli in Manhattan’s Lower East Side.

Known for its towering pastrami sandwiches and that famous scene in "When Harry Met Sally," Katz’s Deli has become arguably the most famous deli in the country. Locals, celebrities and even politicians cannot get enough of this eatery built on the foundation of history and family.

Katz’s Deli first opened its doors in 1888, and is now run by fifth- generation owner Jake Dell, who tells IBTimesTV that he still eats at the Deli "2-3 times a day." But he wasn’t always going to follow in his great grandfathers footsteps. He was studying medicine, before realizing that working in the family business was his true calling.

We wanted to find out, after 125 years, what the recipe for success is?

Walking into the busy deli, you are automatically intoxicated with all the different smells of meat, pickles and aromas. Locals and tourists rub shoulders on the busy tables while busy chefs create their famed towering sandwiches in a matter of moments with spot-on precision.

The walls are covered with the famous faces that ate there -- people like Jimmy Carter, Liam Hemsworth and Johnny Depp.

If you have been to NYC, it's more than likely that you have been to Katz’s Deli, but the burning question remains: Why do people keep going back? Jake Dell told us it’s the feeling you get when you walk in, and take it from me, that pastrami sandwich is something you will never forget eating, that is, if you can finish it.