The term ROTUNDA TOPS can be solved by the crossword solution DOMES, which is a five-letter word. DOMES are architectural structures that are typically round or polygonal in shape and are often used as the roof of a building. They are usually constructed with a strong framework of stone, brick, or concrete and are covered with a layer of plaster or other material. Rotunda tops are a type of dome that is typically found atop a rotunda, which is a circular building with a domed roof.