Bk, everything I've read about the design indicates that they were placed there intentionally by FLW.
<blockquote>'When asked why he chose the ramp, instead of level floors in the conventional stack, Wright explained that he felt the museum-goer would find it far more convenient to enter the building, take the elevator to the top ramp, gradually descend around an open court, always have the option, as the ramp touched the elevator stack at each level, to either go back, or skip down to further levels, and finally, at the end of the exhibition, he would find himself on the ground floor, near the exit.
<em>Bruce Brooks Pfeiffer, <strong>Frank Lloyd Wright</strong> 1991</em>
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