 Interior decoration includes polished surfaces throughout, the use of black and white marble, prominent vertical hallway trim, and an open three-story lobby which at the time of opening housed the world's largest light fixture.Though One LaSalle Street had five more floors, the CBOT building was the first in Chicago to exceed a height of .After surpassing the Chicago Temple Building, it was the tallest in Chicago until the Daley Center was completed in 1965.