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Admiral Scheer [ˌatmiˈʁaːl ʃeːɐ̯] was a Deutschland-class heavy cruiser (often termed a pocket battleship) which served with the Kriegsmarine (War Navy) of Nazi Germany during World War II. The vessel was named after Admiral Reinhard Scheer, German commander in the Battle of Jutland. She was laid down at the Reichsmarinewerft shipyard in Wilhelmshaven in June 1931 and completed by November 1934. Originally classified as an armored ship (Panzerschiff) by the Reichsmarine, in February 1940 the Germans reclassified the remaining two ships of this class as heavy cruisers.The ship was nominally under the 10,000 long tons (10,000 t) limitation on warship size imposed by the Treaty of Versailles, though with a full load displacement of 15,180 long tons (15,420 t), she significantly exceeded it. Armed with six 28 cm (11 in) guns in two triple gun turrets, Admiral Scheer and her sisters were designed to outgun any cruiser fast enough to catch them. Their top speed of 28 knots (52 km/h; 32 mph) left only a handful of ships in the Anglo-French navies able to catch them and powerful enough to sink them.Admiral Scheer saw heavy service with the German Navy, including a deployment to Spain during the Spanish Civil War, where she bombarded the port of Almería. Her first operation during World War II was a commerce raiding operation into the southern Atlantic Ocean; she also made a brief foray into the Indian Ocean. During the operation, she sank 113,223 gross register tons (GRT) of shipping, making her the most successful capital ship surface raider of the war. Following her return to Germany, she was deployed to northern Norway to interdict shipping to the Soviet Union. She was part of the abortive attack on Convoy PQ 17 and conducted Operation Wunderland, a sortie into the Kara Sea. After returning to Germany at the end of 1942, the ship served as a training ship until the end of 1944, when she was used to support ground operations against the Soviet Army. She moved to Kiel for repairs in March 1945, where she was capsized by British bombers in a raid on 9 April 1945 and partially scrapped; the remainder of the wreck was buried when the inner part of Kiel dockyard was filled in after the war.

Howaldtswerke-Deutsche Werft (often abbreviated HDW) is a German shipbuilding company, headquartered in Kiel. It is part of the ThyssenKrupp Marine Systems (TKMS) group, owned by ThyssenKrupp. The Howaldtswerke shipyard was founded in Kiel in 1838 and merged with Hamburg-based Deutsche Werft to form Howaldtswerke-Deutsche Werft (HDW) in 1968. The company's shipyard was formerly used by Friedrich Krupp Germaniawerft until the end of World War II.

German submarine U-103 was a Type IXB U-boat of Nazi Germany's Kriegsmarine that operated during World War II. She was one of the most successful boats in the entire war, sinking 238,944 gross register tons (GRT) of Allied shipping in 11 patrols, in a career lasting more than four years. U-103 was laid down on 6 September 1939 at DeSchiMAG AG Weser in Bremen as yard number 966. She was launched on 12 April 1940 and commissioned on 5 July under the command of Korvettenkapitän Victor Schütze. After her warm-up, (designed to give her an opportunity to train and repair minor faults), she was deployed into the North Atlantic in September 1940 and saw overwhelming success, sinking 46 ships and damaging three other vessels.

The GEOMAR - Helmholtz Centre for Ocean Research Kiel (GEOMAR), formerly known as the Leibniz Institute of Marine Sciences (German: Leibniz-Institut für Meereswissenschaften, IFM-GEOMAR), is a research institute in Kiel, Germany. It was formed in 2004 by merging the Institute for Marine Science (Institut für Meereskunde Kiel, (IFM)) with the Research Center for Marine Geosciences (GEOMAR) and is co-funded by both federal and provincial governments. It was a member of the Leibniz Association until 2012 and is coordinator of the FishBase Consortium. Since 2012 it is member of the Helmholtz Association and named GEOMAR - Helmholtz Centre for Ocean Research Kiel. The institute operates worldwide in all ocean basins, specialising in climate dynamics, marine ecology and biogeochemistry, and ocean floor dynamics and circulation. GEOMAR offers degree courses in affiliation with the University of Kiel, and operates the Kiel Aquarium and the Lithothek, a repository for split sediment core samples.

Wellsee is a lake in Schleswig-Holstein, Germany. At an elevation of 29 m, its surface area is 0.25 km².

The Kiel University of Applied Sciences (German: Fachhochschule Kiel) is a University of Applied Sciences, established in 1969. It is one of three public institutions of higher learning in Kiel, Germany. It provides around 30 Bachelor‘s and Master‘s degrees, supplementary degrees and continuing education courses by the faculties of Agriculture, Business Management, Computer Science & Electrical Engineering, Mechanical Engineering, Media and Social Work and Health. As of November 2018 there are 7824 students enrolled. The campus contains one large and a few smaller cafeterias, as well as two dorms. Furthermore, a planetarium, called the Mediendom, a museum of computers and a star observatory are associated with Fachhochschule. In addition to the main campus in Kiel, the University of Applied Sciences has sites in Neumünster and Osterrönfeld.

German submarine U-1221 was a Type IXC/40 U-boat built for Nazi Germany's Kriegsmarine during World War II.

Kiel Maritime Museum (German - Schifffahrtsmuseum Kiel) is a museum in the German city of Kiel. It was established in 1978 in what had been the fish-auction hall in the Sartorikai area of the city. It shows the maritime history of Kiel. In front of the museum is the lantern of the Alexander von Humboldt lightship, and docked nearby are the rescue boat Hindenburg, the fireboat Kiel, the passenger ship Stadt Kiel, and the buoy tender Bussard, all now museum ships.

Kiel Castle (German: Kieler Schloss) in Kiel in the north German state of Schleswig-Holstein was one of the secondary residences of the Gottorf dukes. The castle exhibited a very varied architectural history and in the more recent architectural period became one of the most important secular buildings in Schleswig-Holstein. The castle burned down during the Second World War and its ruins were largely carried away and replaced by a new building.

The Kunsthalle zu Kiel is an art museum in the German city of Kiel. With 2,000 m2 of display space, it is the largest museum in the city. It is north of the city centre on Düsternbrooker Weg. It has a lecture hall, a small cafe and a sculpture garden.

The Schleswig-Holstein Landtag is the state parliament of the German state of Schleswig-Holstein. It convenes in the state's capital Kiel and currently consists of 69 members of five parties. The current majority consists of coalition of the Christian Democratic Union and the Greens, supporting the cabinet of Minister President Daniel Günther. The Landtag maintains partnerships with the parliament of the West Pomeranian Voivodeship, the Oblast Duma of the Kaliningrad Oblast and the parliament of the Pomeranian Voivodeship.

The Port of Kiel (German: Kieler Hafen) is a significant port for passenger and cargo shipping located in Kiel, Germany. It occupies the inner part of the Baltic Sea inlet Kieler Förde and includes the approach to the locks at the eastern end of Kiel Canal.