The now mostly shuttered summer resorts of Southeastern New York’s Catskill Mountains—Grossinger’s, Kutsher’s, the Concord, and others—provided the formative years for many prominent Jewish comedy stars up through the 1970s. Discover the origins of the Borscht Belt and how such youngsters as Woody Allen, Shelley Berman, Totie Fields, Milton Berle, Joan Rivers, Jerry Lewis, and Danny Kaye left their audiences in stitches. Plus, we take a look at the movies inspired by the “Jewish Alps.”