According to Wikipedia, the menorah is described in the Bible as the seven-lamp (six branches) ancient Hebrew lampstand made of pure gold and used in the portable sanctuary set up by Moses in the wilderness and later in the Temple in Jerusalem. Fresh olive oil of the purest quality was burned daily to light its lamps. The menorah has been a symbol of Judaism since ancient times and is the emblem on the coat of arms of the modern state of Israel.
Today is the last day of Hanukkah, the Jewish holiday also known as the Festival of Lights. The holiday lasts eight days and nights and commemorates the re-dedication of the Holy Temple (The Second Temple) in Jerusalem at the time of the Maccabean Revolt against the Seleucid Empire of the 2nd century BCE. The story goes that a small amount of oil burned miraculously for eight nights when the Maccabees rededicated the Jerusalem Temple. During Hanukkah, a nine-branched menorah is used.
In 1983, a 22 foot aluminum menorah, the tallest in New England, was erected in Boston Common. Since then, a public lighting of the menorah occurs annually by the Chabad of Downtown Boston.
In Gloucester, Temple Ahavat Achim created a menorah made out of lobster traps.