District 4, Düsseldorf

Oberkassel (Limburgish: Ueverkassel) is a part of Düsseldorf's district 4, with a population of about 17,000 inhabitants. Oberkassel lies on the west side of the river Rhine, the opposite side of the central district of Düsseldorf. Oberkassel is an economically well-situated borough with an average income of 61.465 Euro and an unemployment rate below 5%. Nearly half of the households in Oberkassel are single households. The average age is about 45 years.

The Largest Fair on the Rhine (German: Größte Kirmes am Rhein) is a fair in Düsseldorf, one of Germany's largest. It takes place the third week in July on the left bank of the Rhine River, in the district Düsseldorf-Oberkassel, and features beer and food tents, amusement park rides, and vendors.

Niederkassel is a borough of the city of Düsseldorf. It is located on the west side of the river Rhine, bordering Oberkassel and Lörick. It was connected to Düsseldorf when the Oberkassel Bridge was opened in 1898.It was originally part of the district of Heerdt, until Heerdt became a part of Düsseldorf in 1909.At the start of the 20th century, Oberkassel and Niederkassel were popular places for artist's residences., prompted by the national arts exhibition in Düsseldorf in 1902.In the 1970s, Oberkassel and Niederkassel become a popular place for the Japanese community in Germany to live. In 1973 the permanent facility of Japanese School of Düsseldorf opened in Niederkassel. In 1993 the Ekō House, a center for Japanese culture with a traditional Japanese tea house and a Buddhist temple, was opened there. Niederkassel sometimes is called "Klein-Tokio" ("Little Tokyo") by locals.Since 1887, a fete with an annual barrel race has been held in Niederkassel. The barrels are carried in special handcarts called "Schörskar".

Düsseldorf-Hafen is an urban borough of Düsseldorf, Germany, located on the river Rhine and the location of the city's docks. The borough covers 3.85 km2 and is predominantly commercial and industrial in nature, with a very small residential population. It had 212 residents in the year 2000, making it the Düsseldorf borough with the lowest population density. The docks prospered for decades but lost much of their trade when Mannesmann closed its nearby pipe factory. As a result the eastern part of the docks started to be redeveloped, attracting businesses in the service sector such as media, design and fashion companies. One of the first new residents to the so-called Media Harbour was Westdeutscher Rundfunk with its current affairs TV and radio studios. Düsseldorf local radio station Antenne Düsseldorf is also based in the harbour area. One of the largest cinemas of Düsseldorf is in the Hafen. The Landtag (State parliament) of North Rhine-Westphalia and the Rheinturm are situated right next to the harbour. Within the Hafen district is the Neuer Zollhof an ensemble of three warped-looking buildings by architect Frank Gehry and other postmodernist buildings. There are also many restaurants, bars, and a few clubs, which make the Hafen a prominent lifestyle district. The western part of the area still has actively used docks for barges that transport materials on the Rhine. There are plans for further redevelopment with the construction of high end apartment buildings. In 2003 the port company merged with the port of Neuss on the opposite bank of the Rhine to form Neuss-Düsseldorfer Häfen GmbH & Co. KG.

The Rheinkniebrücke (English: Rhine knee bridge) is a cable-stayed bridge leading over the Rhine at the Rheinknie in Düsseldorf with a six-lane motor road and two combined pedestrian and cycle paths, which was opened to traffic on 16 October 1969.

Rheinkomet (lit. 'Rhine comet') is a light art installation on top of the Rheinturm (Rhine Tower) in Düsseldorf. It was first introduced on the 70th anniversary of the federal state North Rhine-Westfalia in August 2016. It has 56 Xenon arc lamps. It was first intended only for the anniversary. Due to high public popularity, they try to set it up permanently and to use it on special occasions.

The Rheinturm (pronounced [ˈʁaɪ̯ntʊʁm]) (Rhine Tower) is a 240.5-metre-high (789 ft) concrete telecommunications tower in Düsseldorf, capital of the federal state (Bundesland) of North Rhine-Westphalia, Germany. Construction commenced in 1979 and finished in 1981. The Rheinturm carries aerials for directional radio, FM and TV transmitters. It stands 174.5 metres high and houses a revolving restaurant and an observation deck at a height of 170 metres. It is the tallest building in Düsseldorf.The Rheinturm was inaugurated on 1 December 1981. It contains 7,500 cubic metres of concrete and weighs 22,500 tons. Before October 15, 2004, when an aerial antenna for DVB-T was mounted, it was 234.2 metres high. The observation deck is open to public daily from 10:00 to 23:30. As a special attraction, a light sculpture on its shaft works as a clock. This sculpture was designed by Horst H. Baumann and is called Lichtzeitpegel (light time level). The light sculpture on the Rheinturm is the largest digital clock in the world.

Neuer Zollhof or Der Neue Zollhof (The New Zollhof), located at Neuer Zollhof 2-6, Unterbilk, is a prominent landmark of Düsseldorf-Hafen, part of the redeveloped port of Düsseldorf, Germany. The building complex consisting of three separate buildings, was designed by American architect Frank O. Gehry and completed in 1998. Floorplans and facades of all three buildings curve and lean, reason for them being likened to leaning towers. The tallest building is 14 storeys high and just under 50 m tall. Each building has a different facade cladding - the outer two in white plaster and red brick respectively; the central building's stainless steel facade reflects material and shapes of its two neighbour buildings. The buildings have a total gross floor area of 29,000 square metres. A previous architectural design competition for the site was won by Iraqi-British architect Zaha Hadid during the early 1990s, however never commissioned.The buildings are also popular with tourists who visit the region.

The Landtag of North Rhine-Westphalia is the state parliament (Landtag) of the German federal state of North Rhine-Westphalia, which convenes in the state capital of Düsseldorf, in the eastern part of the district of Hafen. The parliament is the central legislative body in the political system of North Rhine-Westphalia. In addition to passing of laws, its most important tasks are the election of the Minister-President of the state and the administration of the government. The current government is a coalition of the CDU and the Greens, supporting the cabinet of Minister-President Hendrik Wüst since June 2022.The last state election took place on 15 May 2022.

Japanische Internationale Schule e.V. in Düsseldorf (デュッセルドルフ日本人学校, Dyusserudorufu Nihonjin Gakkō, JISD, German: "Japanese International School in Düsseldorf") is a Japanese international school in Oberkassel, Düsseldorf, Germany.Japanische Ergänzungsschule in Düsseldorf (デュッセルドルフ日本語補習校 Dyusserudorufu Nihongo Hoshūkō), a Japanese weekend school, is a part of the institution.

The Düssel is a small right tributary of the river Rhine in North Rhine Westphalia, Germany. Its source is east of Wülfrath. It flows westward through the Neander Valley where the fossils of the first known to be Neanderthal man were found in August 1856. At Düsseldorf it forms a river delta by splitting into four streams (Nördliche Düssel, Südliche Düssel, Kittelbach, Brückerbach), which all join the Rhine after a few kilometres. The Nördliche Düssel flows through the Hofgarten and passes under the Golden Bridge.Düsseldorf takes its name from the Düssel: Düsseldorf means "the village of Düssel". The name Düssel itself probably dates back to the Germanic *thusila and means "roar" (Old High German doson, German tosen).

Stadttor (transl. City Gate) is a 20-storey 84 m (276 ft) high-rise building in the Unterbilk neighborhood of Düsseldorf, Germany. The building was designed by Düsseldorf-based architecture firm Petzinka Pink und Partner and completed in 1998. It marks the Southern entrance of Rheinufertunnel, which is also the reason for its parallelogram-shaped floor plan. The building features a 15-story atrium and a double-facade, allowing natural ventilation even on higher elevation floors. The total gross floor area is some 30,000 m2 (320,000 sq ft). From 1999 until 2017, the Stadttor was the seat of the state-chancellery of the Prime ministers of North Rhine-Westphalia.