Potsdamer Platz is a public square and traffic intersection in the center of Berlin, Germany, lying about 1 km (1,100 yd) south of the Brandenburg Gate and the Reichstag, and close to the southeast corner of the Tiergarten park. It is named after the city of Potsdam, some 25 km (16 mi) to the south west, and marks the point where the old road from Potsdam passed through the city wall of Berlin at the Potsdam Gate. After developing within the space of little over a century from an intersection of rural thoroughfares into the most bustling traffic intersection in Europe, it was totally destroyed during World War II and then left desolate during the Cold War era when the Berlin Wall bisected its former location. Since German reunification, Potsdamer Platz has been the site of major redevelopment projects.
Theodor Heuss was a German liberal politician who served as the first president of West Germany from 1949 to 1959. His cordial nature – something of a contrast to the stern character of chancellor Konrad Adenauer – largely contributed to the stabilization of democracy in West Germany during the Wirtschaftswunder years. Before beginning his career as a politician, Heuss had been a political journalist.
The Berlin U-Bahn is a rapid transit system in Berlin, the capital and largest city of Germany, and a major part of the city's public transport system. Together with the S-Bahn, a network of suburban train lines, and a tram network that operates mostly in the eastern parts of the city, it serves as the main means of transport in the capital.
U1 is a line on the Berlin U-Bahn, which is 8.8 kilometres (5.5 mi) long and has 13 stations. Its traditional line designation was BII. It runs east–west and its eastern terminus is Warschauer Straße S-Bahn station where it connects to the Schlesische Bahn. From there it runs through Kreuzberg via Gleisdreieck and Wittenbergplatz on to the Kurfürstendamm.
U2 is a line of the Berlin U-Bahn. The U2 line starts at Pankow S-Bahn station, runs through the eastern city centre (Alexanderplatz) to Potsdamer Platz, the western city centre and finally to the Ruhleben terminal station.
The U4 is a line of the Berlin U-Bahn in Germany, the shortest in Berlin's U-Bahn system with a length of 2.86 kilometres (1.78 mi). It serves five stations, with only the two termini being step-free. Opened in 1910, it is the only subway line in Berlin to have never been extended and the only one to have no night service on weekends.
U6 is a Berlin U-Bahn line, 19.9 km (12.4 mi) long line with 29 stations. It runs in a north-south direction from the Berlin locality of Tegel in the north via Friedrichstraße to Mariendorf, a locality in the southern part of the city. It is a so-called large profile ("Großprofil") line.
U3 is a line on the Berlin U-Bahn created in its current version on 7 May 2018.
Alfred Frederik Elias Grenander was a Swedish architect, who became one of the most prominent engineers during the first building period of the Berlin U-Bahn network in the early twentieth century.
Mohrenstraße is a Berlin U-Bahn station on line U2, located in the district of Mitte.
Ernst-Reuter-Platz is a Berlin U-Bahn station on line U2, located in the Charlottenburg district.
Deutsche Oper is a station of the Berlin U-Bahn on line U2, located in the Charlottenburg district. It is named after the Deutsche Oper Berlin.
Bismarckstraße is a Berlin U-Bahn station on lines U2 and U7, located in the Charlottenburg district. It was opened in 1978 on the eponymous street, a major arterial road named after Otto von Bismarck.
Richard-Wagner-Platz is a Berlin U-Bahn station located on the in the Charlottenburg district.
Stralauer Tor was a Berlin U-Bahn station in Berlin-Friedrichshain. It operated between Warschauer Straße and Schlesisches Tor stations on today's U1. Following its destruction in World War II it was never rebuilt and is one of three Berlin U-Bahn stations to have been abandoned after having previously been in service.
Westend is a locality of the Berlin borough Charlottenburg-Wilmersdorf in Germany. It emerged in the course of Berlin's 2001 administrative reform on the grounds of the former Charlottenburg borough. Originally a mansion colony, it is today a quite densely settled, still affluent territory adjacent to Berlin's inner city in the east.
Berlin Potsdamer Platz is a railway station in Berlin. It is completely underground and situated under Potsdamer Platz in central Berlin. Regional and S-Bahn services call at the station, and it is also served by U-Bahn line U2.
The U12 is a former Berlin U-Bahn line. It existed between 1993 and June 2003, as a peak-time and night line between Ruhleben and Warschauer Straße stations.
Theodor-Heuss-Platz is a large city square in the Westend district of Berlin, Germany. It is named after Theodor Heuss (1884–1963), the first President of Germany after World War II.
The Berlin U-Bahn originated in 1880 with Werner Siemens' idea to build an urban railway in Berlin. During the nine years after the German Empire was founded, the city's population grew by over one-third and traffic problems increased. In 1896, Siemens & Halske began to construct the first stretch of overhead railway. On 1 April 1897, the company began construction of an electric underground railway. The Berliner Verkehrs Aktiengesellschaft (BVG) was formed in 1928, and took over further construction and operation of the network. In 1938, the company was renamed Berlin Transport Company; the original acronym, however, remained. Since 1994, the BVG has been a public company.
: Berlin B/5656 [1] 
