Pausanias Description of Greece 1.18.6

[6]
  Before the entrance to the sanctuary of Olympian Zeus—Hadrian the Roman emperor dedicated the temple and the statue, one worth seeing, which in size exceeds all other statues save the colossi at Rhodes and Rome , and is made of ivory and gold with an artistic skill which is remarkable when the size is taken into account—before the entrance, I say, stand statues of Hadrian, two of Thasian stone, two of Egyptian. Before the pillars stand bronze statues which the Athenians call “colonies.” The whole circumference of the precincts is about four stades, and they are full of statues; for every city has dedicated a likeness of the emperor Hadrian, and the Athenians have surpassed them in dedicating, behind the temple, the remarkable colossus.

[6] Before one enters the sanctuary [ hieron] of Olympian Zeus—Hadrian ‘King’ [ basileus] of the Romans dedicated [ anatithenai] the temple [ nāos] and the statue [ agalma] [of Zeus], so worthy of viewing [ théā], which in size exceeds all other statues [ agalmata] except for the colossi [ kolossoi] in Rhodes and in Rome, and is made of ivory and gold with an artistic skill [ tekhnē] that is remarkable when the size is taken into account—before one enters, as I say, there are statues [ eikones] of Hadrian, two of Thasian stone, two of Egyptian. In front of the columns [ kiones] stand bronze statues that the Athenians call apoikoi poleis. The whole enclosure [ peribolos] [of the precinct] is about four stadium-lengths, and it is full of statues; for every city has dedicated a likeness [ eikōn] of ‘King’ [ basileus] Hadrian, but the Athenians have surpassed them all in dedicating [ anatithenai], in the back part of the temple, the colossus [ kolossos] [of Zeus], so worthy of viewing [ théā].