<prompt> Translate the following text to EnglishChumba 18-20 ni sehemu ya kipindi cha kale hadi enzi za kale, Hellenistic, na Kirumi, na sanamu kubwa za marumaru zinashangaza nafasi ya maonyesho hapa.  <response>: Rooms 18-20 move on through the Archaic period to the Classical, Hellenistic, and Roman eras with colossal marble statuary gracing the gallery space here. 