Complex sentence: When opened for business in April 1929, this 10-story structure was the largest bank building in Chicago outside of the Chicago Loop; it was designed by K.M. Vitzthum & Co. in the Classical Revival style, with some Art Deco ornamentation.
Split into simpler sentences: When opened for business in April 1929, this 10-story structure was the largest bank building in Chicago outside of the Chicago Loop. The building was designed by K.M. Vitzthum & Co. in the Classical Revival style, with some Art Deco ornamentation.