Ever since the first McDonald’s fast food restaurant opened in 1955, the burger chain has been expanding rapidly across the globe. For many years, McDonald's was the top fast food restaurant in the world in terms of number of locations and revenue. However, in 2010, the sandwich chain Subway surpassed McDonald’s as the world's most popular restaurant. Subway has about 44,000 locations worldwide, compared to 36,000 McDonald’s restaurants.
However, while Subway has surpassed McDonald’s in terms of number of locations, it does not make as much in revenue. In 2015, Subway's annual sales were $20 billion (USD), compared to McDonald’s, which brought in $27 billion USD.
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