From Sands Point Preserve on Long Island, a look at “Titans of Business & the Best of Design,” on view at the historic Hempstead House through November 24th. Hurricane Sandy remembered through projects at Westbeth Gallery and at the Museum of the City of New York. At the Joyce Theater, two New York premieres of works by Marie Chouinard. The 10th anniversary of “Wicked” at the Gershwin Theater.