Question

find the relative clause. if it is nonrestrictive, set it off with commas. if it is restrictive, submit the text without making any changes. the statue of liberty’s crown which houses a popular observation deck commands an astounding view of new york city’s expansive skyline.

Explanation:

The relative clause here is "which houses a popular observation deck". It is nonrestrictive because it provides additional, non - essential information about the Statue of Liberty’s crown. So we set it off with commas.

Answer:

The Statue of Liberty’s crown, which houses a popular observation deck, commands an astounding view of New York City’s expansive skyline.