The phrase "monumental scale" refers to something that is extremely large or grand in size or importance. It is used to describe things that are massive, significant, or impressive. Full definition
He radically changed the traditional idea of sculpture and expanded the concept through monumental scale of his works and meticulously created relationships with the surrounding space. (widewalls.ch)
The exhibition is exceptional because it features nearly 50 paintings by court officials and court artists, including magnificent silk paintings depicting important historic events in monumental scale. (vmfa.museum)
His finely rendered portraits of both friends and strangers, seen head - on and often at monumental scale, seem at first to be straightforward depictions. (artnews.com)