The U9 is a U-bahn line in Berlin, Germany. The line starts in the North at Osloer Straße and ends at Rathaus Steglitz. The line was opened on August 28th, 1961 with the name “Line G” and is entirely under-surface. It was built because residents of West Berlin needed a fast connection to the center of their newly divided city, south of Zoo. The U9 line serves 18 stations and has a length of 7.8 miles (12.5 km).
You can’t travel on the U9 line without occasionally feeling like you stepped back into the 1960s & 1970s, it’s kind of bizarre. I’m looking at you Schloßstraße.