This is a fantastic source of free high-quality fonts for scripts of the greater Aegean vicinity, Egyptian Hieroglyphs, Meroitic, Sumero-Akkadian Cuneiform, Musical Symbols and all Symbol Blocks in the Unicode Standard. George Douros is their Greek font designer. His free fonts come with this exemplary footnote: In lieu of a licence: Fonts in this site are offered free for any use; they may be opened, edited, modified, regenerated, posted, packaged and redistributed. Many of his fonts contributed to important section in the GNU Freefont project. Here is the list.
Unicode Symbols (2007, in the Computer Modern style) and UniDings (2013)
George Douros: Unicode Fonts for Ancient Scripts