Didyma

Also called DIDYMI, OR BRANCHIDAE, ancient sanctuary and seat of an oracle of Apollo, located south of Miletus in modern Turkey. Before being plundered and burned by the Persians (c. 494 BC), the sanctuary was in the charge of the Branchids, a priestly caste named after Branchus, a favourite youth of Apollo. After Alexander the Great conquered Miletus (334), the oracle was resanctified; the city administered the cult, annually electing a prophet. About 300 BC the Milesians began to build a new temple, intended to be the largest in the Greek world. The annual festival held there, the Didymeia, became Panhellenic in the beginning of the 2nd century BC. Excavations made between 1905 and 1930 revealed all of the uncompleted new temple and some carved pieces of the earlier temple and statues. (Enc. Britt.)

I paid three visits. Pictures from the second visit, with a digital camera, roughly show a walk around much of the perimeter, then entering the site proper, first showing some of the outlay, gradually entering the inner sanctum and then part of the outside again. I climbed the wall and took some pictures from up there, and swear I only later saw that climbing it was forbidden. I show the pictures anyway, because after all, what's the use of throwing them out. But you should not repeat my feat, sorry (it felt rock solid up there). In 2015 I returned and took some more wide-angles and panorama's. I leaf some scans of my earliest visit, with slide film, also. 

Note I gave the temple it's own sub-gallery. What I show in the main gallery are just some shots taken at the sea. Off season I liked the place.