It’s now or never for an only-in-Vegas show that’s one of musical theater’s most spectacular experiences. Las Vegas’ most famous masked man disappears for good when “Phantom – The Las Vegas Spectacular” closes Sept. 2 after a six-year run. The hit show is staged in a custom-built theater that is totally tricked out to replicate the Paris Opera House, with $4 million worth of lavish costumes and 80 life-sized mannequins filling opera boxes. The pièce de résistance — a 2,000-pound chandelier that sparkles with 30,000 crystals. It serves up chills and thrills aplenty when it whooshes toward the audience.

Monday and Saturday, 7 and 9:30 p.m. “PHANTOM — Tuesday through Friday, 7 p.m. THE LAS VEGAS SPECTACULAR” Dark Sundays Venetian Resort-Hotel-Casino 3355 Las Vegas Blvd. South 702.414.9000 or www.venetian.com $69 to $150; VIP Experience $250 per person www.phantomlasvegas.com