World's Tallest Manmade Christmas Tree

City of Austin employees standing on the moontower working on the Zilker Park Christmas Tree, undated. The employees are silhouetted against the sky.

City of Austin employees standing on the moontower working on the Zilker Park Christmas Tree, undated. The employees are silhouetted against the sky.

View of the Zilker Park Christmas Tree at night in December 1969. Cars are visible around the base of the moontower.

View of the Zilker Park Christmas Tree at night in December 1969. Cars are visible around the base of the moontower.

Birds sitting on the moontower and wires creating the Zilker Christmas Tree, undated

Portrait of a young child holding up a drawing of a Christmas tree and wearing a large ribbon from the Austin Parks and Recreation Department, December 1973.

Portrait of a young child holding up a drawing of a Christmas tree and wearing a large ribbon from the Austin Parks and Recreation Department, December 1973.

Steve Sheffield from the City of Austin Electric Department standing on the moontower and adjusting the wires on the Zilker Park Christmas Tree, undated.

Steve Sheffield from the City of Austin Electric Department standing on the moontower and adjusting the wires on the Zilker Park Christmas Tree, undated.

Jack Robinson from Austin Parks and Recreation Department turning on the Zilker Park Christmas Tree in 1976. A young child hold a large switch is standing in front of Robinson and looking upwards.

Jack Robinson from Austin Parks and Recreation Department turning on the Zilker Park Christmas Tree in 1976. A young child hold a large switch is standing in front of Robinson and looking upwards.

Jack Robinson from Austin Parks and Recreation Department turning on the Zilker Park Christmas Tree in 1976. Robinson is standing with a young child who is hold a large switch.

View of the Zilker Park Christmas Tree at night during Yule Fest on December 5, 1968. Cars are visible around the base of the moontower.

View of the Zilker Park Christmas Tree at night during Yule Fest on December 5, 1968. Cars are visible around the base of the moontower.

Steve Sheffield from the City of Austin Electric Department standing on the moontower and adjusting the wires on the Zilker Park Christmas Tree, undated.