I went to the world's biggest Starbucks — the Reserve Roastery on Chicago's Magnificent Mile. It sells food and drinks not available at normal Starbucks stores, which diners can take to its rooftop terrace. AdvertisementWhile I was in Chicago for a conference in May, I decided to check out the world's biggest Starbucks — the Chicago Reserve Roastery. It opened in late 2019, making it the sixth and most recent Reserve Roastery to open. The upscale coffee houses roast their own coffee beans, sell food, drinks, and merchandise not available at normal Starbucks stores, and host tours and classes as well.

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Persons: — Organizations: Service, Chicago Reserve Locations: Chicago, York, Seattle