A visit to NYC would not be complete without attending the theater. Whether it’s a lavish Broadway production or an off-off Broadway experimental piece, watching live performers take the stage is always a unique experience, for no two shows are ever the same. The end of summer and beginning of fall include a wide range of theatrical offerings, many of which run through the end of 2015. Choose from timeless classics like An American in Paris at the Palace Theatre and Chicago at the Ambassador Theatre, to new classics like The Book of Mormon at Eugene O’Neill Theatre. See the novel-to-stage production of The Curious Incident of the Dog in the Night-time (based on the work of fiction by Mark Haddon), which was the winner of five Tony Awards. It’s playing at the Ethel Barrymore Theatre. A new family-friendly extravaganza is Disney’s Aladdin at the New Amsterdam Theatre. Off Broadway, theatergoers will find an eclectic array of shows. Critics are much impressed by the New World Stage’s production of Avenue Q in Hell’s Kitchen. Another fun pick is the Blue Man Group at Astor Place, more performance art than theater. Joe Assadourian’s one-man show The Bullpen is a platform for his talents as he channels 18 different characters. The show is at the Playroom Theater through August 29. If you want to attend something off-off Broadway, The Imbible: A Spirited History of Drinking offers up an intriguing title, that Time Out calls “both educational and entertaining.” It’s playing at the SoHo Playhouse.