Other U.K. retail landlords have added multiscreen cinemas, Michelin-starred restaurants, hotels and even a network of country walks to their developments.

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Worldwide, this 56-year old association with it roots in France has a collection of 480 hotels and gourmet restaurants--several Michelin-starred--in 58 countries.

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The concept is nothing new in Europe, where many of the top Michelin-starred eateries by the likes of Alain Ducasse and company are in grand hotels.

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Other London hotels have bigger names to drop, feel more cutting-edge, or have Michelin-starred chefs to tout.

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