Looking south in the main mezzanine at 86th Street, of the 86th Street BMT Fourth Avenue Line station in Bay Ridge, Brooklyn. Unlike IND stations, BMT mezzanines were built proportional to their purpose. It may have been widened had they built the second platform on the east side of the street.
<a href="//commons.wikimedia.org/wiki/User:Tdorante10" title="User:Tdorante10">Tdorante10</a>
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<span class="int-own-work" lang="en">Own work</span>