Berlin is a green city, with the Tiergarten at its heart and a necklace of forests and lakes. Still, a public park atop a new office building is a new model of ... to accommodate a thousand ...

The dome of Reichstag is open daily from 8 a.m. to midnight, with the last admission at 9:45 p.m. The building is accessible via the No. 100 bus and Berlin's main rail station, Hauptbahnhof.

(Schnepp Renou) As commuters emerge from Hauptbahnhof, Berlin’s central train station, the high-rise building on Europaplatz ... icon for the project at large.