Dydima temple was communicated with the city of Milet (15 kms away) by a sacred paved way (5 metres wide), that the priests walked during the annual festivities (Didymeia) in a big procession.
You can still see part of it at the entrance of the temple.
The first temple (550 BC) was a bit samller (90x39m) than the one you can see now (110x51m). It housed an statue of Apollo that the persians stoled and took to Ecbatana after destroying the temple.
Alexandre the Great recovered the statue and rebuilt the temple thet you actually see.
Favorite thing: This sanctuary was well known even before the greek times. The visitors had to purify at the well which was at the feet of the stairway. Then had to pay for the visit (much more if it was a private matter than for a public one). An animal was sacrified and then they made the questions to the oracle. The answers were "translated" and given to the visitors.
Favorite thing: Everything in this temple is huuuge. The columns are like made for giants. Now you can only see part of them, but it must have been impressive to see the whole temple with its incredible height.
Favorite thing: This marvellous stairway leads to the pronaos, the "hall" of the temple. Here, outside the temple, the visitors had to wait for the oracle to give its veredict.
Favorite thing: This enormous head located at the feet of the stairway are one of the most famous symbols of the site.