a branch of green leaves is stretching out into the blue sky on a warm summer day in front of the skyscraper zoofenster in berlin

architecture astoria berlin blue branch building business capital city cityscape clear day destination destinations downtown europe exterior facade famous front germany glass green high highrise hotel kudamm kurfürstendamm landmark leaves luxury modern natural nobody office outdoor people sky skyline skyscraper stretching structure summer tourism tower travel upper urban waldorf warm west window zoo zoofenster