When people mention genital symbolism in building design, it's usually male genital symbolism. Church steeples are sometimes thought of as.
The Anatomy of a Church - Part 2. having two spires on each side of an entrance leading into the sacred precincts. . used in Oriental art to signify the divine female genital; also called vesic~ piscis, the Vessel of the Fish.
The fornices of the vagina are the superior portions of the vagina, extending into the recesses created by the vaginal portion of cervix. The word "fornix" is Latin.