Artisphere First Birthday Celebration, Saturday and Sunday Believe it or not, Artisphere in Arlington turns a year old this weekend. In October 2010, the art space and venue in Rosslyn opened, and will celebrate with a party on Saturday evening followed by an open house on Sunday.

“It’s quite an enormous task of magnitude to open a venue of this size,” said Annalisa Meyer, Artisphere communications and marketing director.