[1] In 1940, the collection was evacuated and put in storge out of fear that it would be destroyed in the event of a German attack on the Danish Navy.

In 1974 a branch of the museum opened at Valdemars Castle on the island of Tåsinge which mainly focussed on the naval hero Niels Juel who had owned the estate in the middle of the 17th century.

Det Kongelige Opfostringshus) which had been founded a few years earlier and took care of the upbringing of sons of single parents from poor backgrounds.

In 1775 the institution moved to new premises in Store Kongensgade and the building was instead converted into a new home for the Royal Naval Hospice which had until then been located at Sankt Annæ Plads.

[3] The oldest ship in the Model Collection is an unnamed vessel from the 1660s with a bust resembling Niels Juel decorating its Transom.

Apart from the collections, the museum also use diorama of important naval battles and mock-ups to present the history of the Danish Navy.

The museum also takes in three decommissioned naval ships of the Cold War era which are docked at Nyholm.

During opening hours visitors are free to walk around the largest of the ships, FDMS Peder Skram, a Peder Skram class frigate, while the two others, HDMS Sælen, a submarine, and HDMS Sehested, a Willemose-class missile boat, can only be visited on tours.