Unter den Linden

Unter den Linden is former East Berlin's posh boulevard.

It is named for its Linden trees (lime trees) that line the grassed pedestrian mall between two carriageways. 

Unter den Linden runs from the Brandenburg Gate to the Museumsinsel. Major streets crossing Unter den Linden are Friedrichstraße and Wilhelmstraße.

The street  is at the heart of the historic section of Berlin dating from the 17th and 18th centuries. Impressive buildings are lined up one after the other. 

Buildings along the street include the Hotel Adlon, the Russian Embassy, the Berlin State Library, the Berlin State Opera, Humboldt University, the Cathedral of St. Hedwig, the Neue Wache war memorial, the Zeughaus (German Historical Museum ), the Alte Kommandantur and the Berliner Dom.

Like in any other bigger Berlin street in summer somewhere there's always a party or some kind of event going on.

Historic details: Wikipedia.