Wiktionary
monumentality
n. The quality or state of being monumental
Usage examples of "monumentality".
For example, once the cultural soul has been awakened, a tendency to heaven-storming monumentality consistently appears.
It consists in a certain combination of oddity, dullness and monumentality unique, so far as I know, in the annals of architecture.
It contrives to be intimate without being claustrophobic and gracious without descending into either monumentality or prettiness.