monumental building meaning in English

纪念性建筑物

Enormous architectural volumes demanded that the artist generate the intermediate forms of monumental sculpture as a preliminary stage leading to the vastness of monumental buildings . the aim was to create new sculpture out of the play of free and for the most part abstract forms which could stand alongside architecture
这样做的目的当然是?了要显示出，这些在毫无拘束和羁绊之下创作出来大部份属于是抽象作品的雕塑是有可能与旁边的建筑物平起平坐的。