Next time you visit the Big Apple, you can discover unique facts about the city through a scavenger hunt you complete using your cellphone. “New York: The Game’’ is a self-guided walking tour that lets you explore “zones,’’ or neighborhoods, such as SoHo, Greenwich Village, Chinatown, or Wall Street at your own pace. Purchase a ticket based on the amount of time you want to play (up to three days, max, per ticket), and then visit as many of the 10 zones as you like, letting the clues guide you from one site to the next. Or purchase a museums-only ticket for the Metropolitan Museum of Art and the American Museum of Natural History, which were added this year. Tickets: adults $20-$50, children $15-$30. Save $10 per ticket when purchased this month (good for up to one year). 877-787-2929,www.strayboots.com/nyc/gamezones