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Architects: D. H. Burnham & Co. The construction of the Frick Building, a severe Greek Classical structure of steel encased in limestone and granite, marked the beginning of corporate dominance on Grant Street. The columns at the base were originally at street level before the lowering of "the Hump", the steep hill at Grant Street and Fifth Avenue, in 1912. The lowering of the entrance made the marble lobby even more impressive by making it two stories tall. Daniel Burnham and Company, a nationally-known Chicago-based firm, designed a total of seventeen buildings in Pittsburgh - many commissioned by Henry Frick, the coke and steel magnate - including the Union Station at Grant Street and Liberty Avenue.
