Berlin is the capital city and one of sixteen states of Germany. With a population of 3.4 million within its city limits, Berlin is the country's largest city. It is the second most populous city and the eighth most populous urban area in the European Union. Located in northeastern Germany, it is the center of the Berlin-Brandenburg metropolitan area, comprising 5 million people from over 190 nations.

First documented in the thirteenth century, Berlin was successively the capital of the Kingdom of Prussia (1701-1918), the German Empire (1871-1918), the Weimar Republic (1919-1933) and the Third Reich (1933-1945). After World War II, the city was divided; East Berlin became the capital of East Germany while West Berlin became a Western exclave, surrounded by the Berlin Wall from 1961-1989. Following German reunification in 1990, the city regained its status as the capital of all Germany hosting 147 foreign embassies.

Berlin is a major center of culture, politics, media, and science in Europe. Its economy is primarily based on the service sector, encompassing a diverse range of creative industries, media corporations, environmental services, congress and convention venues. The city serves as a continental hub for air and rail transport, and is one of the most visited tourist destinations in the EU. Other industries include traffic engineering, optoelectronics, information technology, vehicle manufacturing, biomedical engineering, and biotechnology.

The metropolis is home to world-renowned universities, research institutes, sporting events, orchestras, museums and personalities. Berlin's urban landscape and historical legacy has made it a popular setting for international film productions. The city is recognized for its festivals, diverse architecture, nightlife, contemporary arts and a high quality of living. Berlin has evolved into a global focal point for young individuals and artists attracted by a liberal lifestyle and modern zeitgeist.

Berlin is home to 153 museums. The ensemble on the Museum Island is a UNESCO World Heritage Site and is situated in the northern part of the Spree Island between the Spree and the Kupfergraben. As early as 1841 it was designated a “district dedicated to art and antiquities” by a royal decree. Subsequently, the Altes Museum (Old Museum) in the Lustgarten displaying the bust of Queen Nefertiti, and the Neues Museum (New Museum), Alte Nationalgalerie (Old National Gallery), Pergamon Museum, and Bode Museum were built there. While these buildings once housed distinct collections, the names of the buildings no longer necessarily correspond to the names of the collections they house.

Apart from the Museum Island, there is a wide variety of museums. The Gemäldegalerie (Painting Gallery) focuses on the paintings of the "old masters" from the thirteenth to the eighteenth centuries, while the Neue Nationalgalerie (New National Gallery, built by Ludwig Mies van der Rohe) specializes in twentieth century European painting. The Hamburger Bahnhof, located in Moabit, exhibits a major collection of modern and contemporary art. In spring 2006, the expanded Deutsches Historisches Museum re-opened in the Zeughaus with an overview of German history through the fall of the Berlin Wall in 1989. The Bauhaus-Archive is an architecture museum.

The Jewish Museum has a standing exhibition on two millennia of German-Jewish history. The German Museum of Technology in Kreuzberg has a large collection of historical technical artifacts. The Museum für Naturkunde exhibits natural history near Berlin Hauptbahnhof. It has the largest mounted dinosaur in the world (a brachiosaurus), and a preserved specimen of the early bird Archaeopteryx.

In Dahlem, there are several museums of world art and culture, such as the Museum of Indian Art, the Museum of East Asian Art, the Ethnological Museum, the Museum of European Cultures, as well as the Allied Museum (a museum of the Cold War), the Brücke Museum (an art museum). In Lichtenberg, on the grounds of the former East German Ministry for State Security (Stasi), is the Stasi Museum. The site of Checkpoint Charlie, one of the renowned crossing points of the Berlin Wall, is still preserved and also has a museum. The museum, which is a private venture, exhibits a comprehensive array of material about people who devised ingenious plans to flee the East. The Beate Uhse Erotic Museum near Zoo Station claims to be the world's largest erotic museum.
Zoologischer Garten Berlin, the older of two zoos in the city, was founded in 1844, and presents the most diverse range of species in the world. It is the home of the captive-born celebrity polar bear Knut, born in December 2006.Tierpark Friedrichsfelde, founded in 1955 in the grounds of Schloss Friedrichsfelde in the Borough of Lichtenberg, is Europe's largest zoo in terms of square meters.

Berlin's Botanischer Garten includes the Botanic Museum Berlin. With an area of 43 hectares (106 acres) and around 22,000 different plant species it is one of the largest and most diverse gardens in the world.

The Tiergarten is Berlin's largest park located in Mitte and was designed by Peter Joseph Lenné. In Kreuzberg the Viktoriapark provides a good viewing point over the southern part of inner city Berlin. Treptower Park beside the Spree in Treptow has a monument honoring the Soviet soldiers killed in the 1945 Battle of Berlin. The Volkspark in Friedrichshain, which opened in 1848, is the oldest park in the city. Its summit is man-made and covers a Second World War bunker and rubble from the ruins of the city; at its foot is Germany's main memorial to Polish soldiers.

Berlin is known for its numerous beach bars along the river Spree. Together with the countless cafés, restaurants and green spaces in all districts, they create an important source of recreation and leisure time.