Mithlond was founded at the beginning of the Second Age by the surviving Elves of Beleriand, those who chose to remain on Middle-earth after the wars against Morgoth. It was afterwards used by the Elves to leave Middle-earth for Valinor. The Grey Havens was part of Lindon, the kingdom directly ruled by Gil-galad, last High King of the Ņoldor in Middle-earth. It was also one of the main sources for Elven navy.
According to the map of Middle-earth Mithlond's anchorage is divided into the Harlond (the "south-haven") and the Forlond ("north-haven") which occupy the southern and northern banks, respectively, of the River Lune.
Because of its cultural and spiritual importance to the Elves, Mithlond in time became the primary Elvish settlement west of the Misty Mountains prior to the establishment of Eregion and, later, of Imladris. Even after the death of Gil-galad and the Elves dwindled in numbers by the year, Mithlond remained a focal point of the history in the northern part of Middle-earth.
this is a micro scale part of Mithlond (the Grey Havens), to be exact, the northern (eastern) sea wall. it has a little lighthouse, but the scale of the MOC is so small i couldn't put in a dock. the little "wall" of rocks separating the lowest level to the next is kind of a halo inspiration. this is not supposed to be very... exact, as you only see or hear about the Grey Havens once or twice in the movies and books. :)