This is the Armenian Genocide Memorial in Boston on the newly formed Greenway. It's really nice to see Boston adding all these new features, especially on the Greenway.
The sculpture is a dodecahedron, and it's reconfigured annually to a new shape, symbolic of all who were pulled apart from their country of origin and came to these Massachusetts shores, establishing themselves in new and different ways.
If you've yet to check out the new Greenway path in Boston I highly recommend you do so. Especially at night time, it's truly a pleasant walk, with some very interesting pieces.