Where is Quba Mosque located?

Quba Mosque is well-known and famous, and it is the mosque intended by Allah's saying: "A mosque founded on piety from the very first day is more worthy for you to stand forth [for prayer] therein. In it are men who love to clean and purify themselves. And Allah loves those who make themselves clean and pure [i.e. those who purify themselves from sins by repenting to Allah, and from impurities by bathing and performing ablution (Wudu')]." [At-Tawbah:108]. It is located in the Awali area of Medina.