There are few accessible sites associated with Alexander the Great, his father Philip II, and ancient Macedonia in general, but Vergina is one of them and a very interesting one to boot. The focus of the site is the great museum that is cut into Philip´s tumulus. It´s one of the most interesting museums I´ve ever been to, and I wish I had had more time in Vergina to explore the area in closer detail. The roads in the vicinity of Vergina are scattered with tumuli, and there are probably lots of undiscovered treasures there. I also visited nearby Pella, which has some interesting mosaics and a nice museum, but doesn´t have anything like Vergina.