Yorktown Central Plaza was a plaza located at the central nexus of the Federation starbase Yorktown in the 23rd century of the alternate reality. The plaza was home to Yorktown Headquarters, characterized by several high rise buildings and an artificial lake connected to one of Yorktown's many space lanes.
In 2263, the crew of the destroyed USS Enterprise piloted the 22nd century USS Franklin through Yorktown's inner-space lanes and into Yorktown Central Plaza, colliding with three of Krall's ships in an effort to end his attack on the base. Following the incident, the Franklin came to a rest, crash landing in Yorktown Central Plaza. (Star Trek Beyond)