Athletic Annex
Langdon St.     Bult 1911     Demolished 1956     Arthur Peabody
The athletic annex was built on the east side of the red gym. It provided space for a running track and a baseball cage, allowing the gym's fourth floor to become a gymnasium.

The Annex served the athletic department in its role until the completion of the Camp Randall Memorial Shell in 1956, when the annex space became needed for the erection of the Wisconsin Center building. In the summer of 1956, the gym annex, and the old YMCA building, were razed by the Madison Moving and Wrecking Company.