isn't it a name of street?
what does " the spell of Unter den Linden is still strong"mean?isn't "Unter den Linden" a name of street?
the context is:
【My Dear Martin:
Back in Germany! How I envy you! Although I have not seen it since my school days, the spell of Unter den Linden is still strong upon me—the breadth of intellec¬tual freedom, the discussions, the music, the light- hearted comradeship. And now the old Junker spirit, the Prussian arrogance and militarism are gone. 】