In this paper I briefly present the prepositional system in Persian, focussing
on the noun-like behaviour of Class 2 prepositions. Considering silent place
hypotheses suggested for Greek and Hebrew locatives, I suggest that a null place
element in the extended prepositional projection can account for several nominal
properties of the Class 2 Ps. I argue that Class 2 Ps are distinct from true
nouns, their only nominal property being that they can modify nouns, including
the silent place element. Finally, I show how the entire structure can capture
various phenomena characterizing this prepositional class.