Louisville may be the new center of the universe for die-hard fans of White Castle.
Friday, the fast food chain opened it's largest store in the country, in the Derby City.
The 38 by 91square foot restaurant can seat up to 78 people.
Mayor Jerry Abramson served up some of the first sliders at the restaurant's grand opening ceremony.
White Castle, which has been around for 80 years, has more than 380 restaurants. Last year alone, the chain served up more than 500 million burgers.