The plaza across the street belongs to the city government. During the sixteenth century, Martin Luther once debated here. On the other side of the plaza is the university library, which holds 2.2 million volumes.
這廣場屬於市政府，十六世紀宗教改革家馬丁．路德曾在此與人辯論；廣場的另一邊則是藏書二百廿萬冊的海大圖書館。