Berlin is the capital and largest city of Germany by both area and population. Its 3,769,495 (2019) The city is one of Germany's 16 federal states. It is surrounded by the state of Brandenburg, and contiguous with Potsdam, Brandenburg's capital. The two cities are at the center of the Berlin-Brandenburg capital region, which is, with about six million inhabitants and an area of more than 30,000 km², Germany's third-largest metropolitan region after the Rhine-Ruhr and Rhine-Main regions. Berlin straddles the banks of the River Spree, which flows into the River Havel (a tributary of the River Elbe) in the western borough of Spandau. Among the city's main topographical features are the many lakes in the western and southeastern boroughs formed by the Spree, Havel, and Dahme rivers (the largest of which is Lake Müggelsee). Due to its location in the European Plain, Berlin is influenced by a temperate seasonal climate. About one-third of the city's area is composed of forests, parks, gardens, rivers, canals and lakes. The city lies in the Central German dialect area, the Berlin dialect being a variant of the Lusatian-New Marchian dialects. First documented in the 13th century and situated at the crossing of two important historic trade routes, Berlin became the capital of the Margraviate of Brandenburg (1417–1701), the Kingdom of Prussia (1701–1918), the German Empire (1871–1918), the Weimar Republic (1919–1933), and the Third Reich (1933–1945). Berlin in the 1920s was the third largest municipality in the world. After World War II and its subsequent occupation by the victorious countries, the city was divided; West Berlin became a de facto West German exclave, surrounded by the Berlin Wall (1961–1989) and East German territory. East Berlin was declared capital of East Germany, while Bonn became the West German capital. Following German reunification in 1990, Berlin once again became the capital of all of Germany. Berlin is a world city of culture, politics, media and science. Its economy is based on high-tech firms and the service sector, encompassing a diverse range of creative industries, research facilities, media corporations and convention venues. Berlin serves as a continental hub for air and rail traffic and has a highly complex public transportation network. The metropolis is a popular tourist destination. Significant industries also include IT, pharmaceuticals, biomedical engineering, clean tech, biotechnology, construction and electronics. Berlin is home to world-renowned universities such as the Humboldt Universität zu Berlin (HU Berlin), the Technische Universität Berlin (TU Berlin), the Freie Universität Berlin (Free University of Berlin), the Universität der Künste (University of the Arts, UdK) and the Berlin School of Economics and Law. The city has numerous orchestras, museums, and entertainment venues, and is host to many sporting events. Its Zoological Garden is the most visited zoo in Europe and one of the most popular worldwide. With the world's oldest large-scale movie studio complex, Berlin is an increasingly popular location for international film productions. The city is well known for its festivals, diverse architecture, nightlife, contemporary arts and a very high quality of living. Since the 2000s Berlin has seen the emergence of a cosmopolitan entrepreneurial scene.

Los Angeles (Los Ángeles; ), officially the City of Los Angeles and often known by its initials L.A., is the most populous city in California; the second most populous city in the United States, after New York City; and the third-most populous city in North America, after Mexico City and New York City. With an estimated population of nearly four million people, Los Angeles is the cultural, financial, and commercial center of Southern California. The city is known for its Mediterranean climate, ethnic diversity, Hollywood, the entertainment industry, and its sprawling metropolis. Los Angeles lies in a basin, adjacent to the Pacific Ocean, with mountains as high as and deserts. The city, which covers about is the seat of Los Angeles County, the most populous county in the United States. The Los Angeles metropolitan area (MSA) is the second-largest metropolitan area in the nation with a population of 13.1 million people. The Greater Los Angeles metropolitan area (CSA) is the second-most populous CSA metropolitan area with a 2015 estimate of 18.7 million people. Los Angeles has a diverse economy and hosts businesses in a broad range of professional and cultural fields. It is also famous for its movie, television, and recording industry. A global city, it has been ranked 6th in the Global Cities Index and 9th in the Global Economic Power Index. The Los Angeles metropolitan area also has a gross metropolitan product of $1.0 trillion The completion of the Los Angeles Aqueduct in 1913, which delivers water from Eastern California, later assured the city's continued rapid growth. Previous to the 1950s, Los Angeles' name had multiple pronunciations, but the soft "G" pronunciation is universal today. Some early movies or video shows it pronounced with a hard "G" . Sam Yorty was one of the last public figures who still used the hard "G" pronunciation.