Answer:
Explanation:
Both apostrophes are wrong.
Buildings should not have an apostrophe at all.
The second one is very tricky and you know it is wrong only because there is a singular pronoun (him) near the end of the sentence. Therefore what you need to do is move the apostrophe between the t and the s. There is only 1 architect being spoken about and he possess the influence his work has make him a worldwide icon.