Trekroner Fort

The Battle of Copenhagen of 1801 (Danish: Slaget på Reden, meaning "the battle of the roadstead [of Copenhagen Harbour]"), also known as the First Battle of Copenhagen to distinguish it from the Second Battle of Copenhagen in 1807, was a naval battle in which a British fleet fought and defeated a smaller force of the Dano-Norwegian Navy anchored near Copenhagen on 2 April 1801. The battle came about over British fears that the powerful Danish fleet would ally with France, and a breakdown in diplomatic communications on both sides. As the British ships entered the harbour of the Danish Navy, several of its ships took up station at the harbour's roadstead, forming a blockade. The Danish fleet defended the capital with these ships and bastions on both sides of the harbour inlet. It was the second attempt by the British to try to prevent a Franco-Danish alliance, as the British had already entered Øresund with a fleet in August 1800, in order to persuade Denmark not to ally with France. The Danes agreed to the British terms upon hearing news of the assassination of Tsar Paul I of Russia, as his death meant the end of the Russian-led League of Armed Neutrality of which Denmark was a member.

B&W Hallerne (English: The B&W Halls) is a former industrial complex located on the island of Refshaleøen in Copenhagen, Denmark. Built in the early 1960s by Burmeister & Wain, the complex consists of two large halls which were used to build ships until 1996. Currently, the facilities are used for culture and entertainment activities.On 2 September 2013, Danish public broadcaster DR announced that it had chosen B&W Hallerne as the host venue for the Eurovision Song Contest 2014. The contest was held at the Section Hall 2, which was converted into a music venue with a capacity for 11,000 spectators. The surrounding buildings and areas were transformed into "Eurovision Island" which was used for additional services related to the contest.

Refshaleøen is a former industrial site in the harbor of Copenhagen, Denmark originally on a separate island but now annexed to the larger island of Amager. For more than a hundred years, it was home to the shipyard Burmeister & Wain which closed in 1996.

Copenhagen Suborbitals is a crowd-funded, open-source human space program. It has flown five home-built rockets and two mock-up space capsules since 2008. The organization successfully launched its Nexø II rocket in the summer of 2018. Its stated goal is to have one of its members reach space (above 100 km) on a sub-orbital spaceflight. The organization was founded by Kristian von Bengtson and Peter Madsen.The program's 55 members work on it during their free time and elect a chairman and board members at their annual general assemblies. As of 2019, the chairman is Carsten Olsen.

Pakhus 48 is a former warehouse of the Free Port of Copenhagen, Denmark, now housing showrooms for a number of design and furniture companies. Owned by Copenhagen City and Port, the building has an area of 3,000 square metres.

Pier47 is a DGNB Gold-certified office building located on the Langelinie Pier in Copenhagen, Denmark. It was designed by Lundgaard & Tranberg with inspiration from 19th century warehouses. It is owned by ATP Ejendomme.

Nordhavnen, or Nordhavn, is a harbour area at the coast of the Øresund, founded at the end of the 19th century in Copenhagen, Denmark. It covers an area of more than 2 km². Today, most of Copenhagen Harbour's traditional activities are situated in Nordhavn, including ferry berths, a container terminal, marina, and industrial companies. The S-train station Nordhavn station is located at Nordhavnen close to the city district Østerbro.

The Denmark Expedition Memorial is a sculpted boulder at Langelinie in Copenhagen, Denmark, commemorating Ludvig Mylius-Erichsen (1872–1907), Niels Peter Høeg Hagen (1877–1907) and Jørgen Brønlund (1877–1907) who died on the Denmark Expedition to North-East Greenland in 1907. The memorial was unveiled in 1912. It was designed by Kai Nielsen in collaboration with Kaare Klint.

Nyholm Central Guardhouse is a historic building at Holmen in Copenhagen, Denmark. It was built in 1745 as part of the Nyholm Naval Base which had been established on reclaimed land at the site in 1690.

Mastekranen (English: The Masting Crane) is an 18th-century masting sheer and present landmark on Holmen in Copenhagen, Denmark. It was designed by architect Philip de Lange and built in 1748–51 as part of the Royal Naval Shipyard at Holmen.

HDMS Sehested (P 547) was a Willemoes-class fast attack craft of the Royal Danish Navy which was in commission from 1978 until 2000. It is now docked at Holmen in Copenhagen where it serves as a museum ship, part of the Royal Danish Naval Museum. The ship is named after Christen Thomesen Sehested, a Danish vice-admiral during the Great Northern War (1709-1721).

The Silo is a 65-meter (213 foot) apartment building converted from a former grain silo located in Nordhavn, Copenhagen, Denmark. The 17-storey structure was completed in May 2017 and houses 39 apartments, a restaurant and lookout platform. The building was designed by the Copenhagen-based Cobe architectural firm, and was completed in 2017.