I went to Copley Square this morning to see what's there -- nothing but brick! And snow. And it was before sunrise and raining, so I didn't stay long.
In
this picture by
Elgin the three colored squares in the middle look like they are covering a circular fountain, but there was nothing.
There will be ice sculptures all over the park on New Years Eve (Boston's First Night celebration)
Maybe the name of the game is "Copley Squares"?