Straight above the Temple of Apollo is the theatre, which is largely intact. Really really impressive. Particularly considering that it was built more than 2,500 years ago and it is still standing, and functional.
There are numerous buildings belonging to the many city states that came to Delphi to worship at the Temple of Apollo, and to consult the oracle. One of them is called the Treasury of Athens.
On the foundations of the Treasury there is an inscription in reference to Marathon.
I am not quite sure whether it is a reference to the Battle of Marathon itself, when the Greeks defeated the Persians in 480 BC, or to Philippides who ran from Marathon to Athens to report the victory, then collapsed and died.
In any case, many of my dreams came true here at Delphi.