Before this, the tallest buildings Shang Jianyao and Long Yuehong had seen were the few 'chimneys' in the steelworks factory ruins. They clearly couldn't compare with the high-rise buildings they saw now.
This did not mean that the 'chimneys' were necessarily much shorter. It was more based on the visual impact. Be it in terms of length or width, these high-rise buildings were clearly superior to the steelworks factory's 'chimneys.' Therefore, when taking every aspect into account, they could be called 'colossal.'
What shocked Shang Jianyao and Long Yuehong the most was that there were more than one or two such buildings. There were so many that it was difficult to determine their exact number.
These buildings were neatly arranged in a pattern that stretched on without end in every direction.