In a few minutes fighter jets of the Hellenic Air Force will be flying low over Athens and other Greek cities!
From 11:45′ to 12:00′ one Mirage-2000, one F-16 Block30 one F-4E and one F-16 Block52+ will be over the Greek cities and most notably Athens, as part of the rehearsals for the March 25th parade.
Look up people and be on your tows!

Here is an older clip of a similar passing over the Acropolis.