Knights Templar as a medieval Christian military order, associated with the short Crusader occupation of Jerusalem and development of trade and banking; I hadn't realized there was a modern iteration of the Knights, a branch of Freemasonry.
In 1907, the San Francisco chapter of these Masonic Knights erected their multi-story fortress in the Western Addition. Its architectural style is known as the Jacobean Phase of Medieval Revival.
The decorative sculptural details are quite extraordinary. Click on them to enlarge.
Discovered while Walking San Francisco.