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    The station deep under the surface at Washington Park 
    contains a geologic timeline display, highlighting earth core samples 
    that were extracted during the 
    pre-construction phase of the tunnel project.  Much information is provided.  
	And etched images and writings are also present, relating to the 
    Zoo and other institutions in the huge park above.  It all makes for 
    interesting viewing during the moments waiting for a train to approach. 
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