Circular Art, Again

This is a second view of that unidentified piece of public sculpture.  The station on the Yellow Line is called Interstate/Rose Quarter, whereas the busier stop for the other three lines is Rose Quarter Transit Center. 

It's a walk of a block or so  between the two platform areas.  A person transferring between north and east can avoid that short hike by heading over Steel Bridge twice, and choosing to cross between the opposite platforms at Old Town/Chinatown.  

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