This is the last year the public will see the iconic Christmas tree that has shone above the old Palomar Hospital for decades. Many adults in middle age can recall seeing this tree heralding the season high above the city every year. Palomar Health is scheduled to vacate the building before the end of the year. The building will eventually be demolished by the new owners, Integral Communities, which plans to build residential units. The zoning would allow about 1,000 such units.