This pentagram is built into a small tower in Presidio Park in San Diego, California. The pentagram is on the tower roof, open to the air, which is reached by climbing a staircase.

The official name of the Witches' Tower is the Pattie Memorial, commemorating the first American to die to California. It is supposed to be built close to where a historical guardhouse and jail used to be. The Pattie Memorial is a storage building. Presidio Park is very convenient to the hotels on Hotel Circle. Multiple layers of candle wax on the pentagram attest to its ritual use.