HOW do you mark a miracle? Well, if you’re running Lin coln Center — which trans formed a gritty part of the city into a world-class performing arts center 50 years ago — you renovate, celebrate and perform some more.

After yesterday’s cake-cutting, there’s plenty to get excited about on the horizon. Here are a handful of events people may well be talking about at Lincoln Center’s centennial. For more details and a complete list of what’s in store for the rest of the year, visit LincolnCenter.org/50.

* Go, go to Yo-Yo. Ma, that is. The “Sesame Street” gang’s favorite virtuoso cellist and his Silk Road Ensemble perform a free concert June 9 in the newly renovated Guggenheim Bandshell in Damrosch Park at Amsterdam Avenue at 62nd Street. Or watch it from your couch — it’ll be broadcast that night at 8 p.m. on PBS, Channel 13, as part of the “Live From Lincoln Center” series.

* Screen the best. The Film Society of Lincoln Center decided the best way to honor a 50-year milestone is with a 50-hour movie marathon. Unspooling July 3-5 at the Walter Reade Theater, 165 W. 65th St., will be such classic musical flicks as “An American in Paris” and “Gentlemen Prefer Blondes.” Spring for the jumbo box of popcorn.

* Do the twist. Chubby Checker introduced us to a new dance sensation not long after the groundbreaking for Lincoln Center. Come on, baby — see him do it again at twist night at Midsummer Night Swing, Lincoln Center’s alfresco dance party, July 8 at Damrosch Park. It’ll cost you $15 to get on the dance floor, but parties break out all along the periphery for free. They’ll literally be dancing in the street.

* Get an earful. The elegant conductor and pianist Pierre-Laurent Aimard and the Chamber Orchestra of Europe make their long-awaited Mostly Mozart Festival debuts Aug. 9 at the equally elegant (and renovated) Alice Tully Hall.

* Prowl the catwalk. Fashion Week leaves Bryant Park for Lincoln Center’s Damrosch Park in September 2010. It’s never too early to dream, is it?