 Other British cities have two (Birmingham, Leeds, Sheffield, Norwich and Glasgow).Columbus, Ohio, in the United States, also has two, while Houston, Texas will have three official ring roads (not including the downtown freeway loop).Some cities have far more Beijing, for example, has six ring roads, simply numbered in increasing order from the city center (though skipping #1), while Moscow has five, three innermost (Central Squares of Moscow, Boulevard Ring and Garden Ring) corresponding to the concentric lines of fortifications around the ancient city, and the two outermost (MKAD and Third Ring) built in the twentieth century, though, confusingly, the Third Ring was build last.