Answer: capstones

AnswerCrossword Clue
CAPSTONESFinishing blocks, in architecture.
CAPSTONESCrowning events
capstonesA concluding achievement
capstonesA stone fixed on top of something, typically a wall
capstonesA large, flat stone forming a roof over the chamber of a megalithic tomb
capstonesCAPSTONE, the top stone of a sculpture