The underlined subject of the sentence the skyscraper that was built last year is a noun phrase.When determining the type of phrase, you first need to find its center, of the most prominent word. Here, the center is skyscraper, which is a noun, which means that the whole phrase is a noun phrase.
Nervously
Unevenly
Tensed
Startled
Blankly maybe if you’re talking about something creepy’s emotional state.
Answer:
It is a simile.
<h3>Why is it a simile?</h3>
Any comparison that uses, "like" or, "as" is classified as a simile.