Palmyra and some more old architecture today…

 

Celebrant

A person who performs a rite

 

Battlement

A parapet at the top of a wall, especially of a fort or castle, that has regularly spaced squared openings for shooting through

 

Merlon

The solid upright section of a battlement in medieval architecture or fortifications (where you hide behind when not shooting arrows from the battlement)

 

Crenellation

The gap between merlons in a battlement

 

Triple deity

Three deities worshiped as one, like the Greek Fates