The big attraction just south of the castle is the revamped former shipyard area where the Maritime Museum of Denmark (Ny Kronborgvej 1; July & Aug daily 10am–5pm; Sept–June daily 11am–4pm; 110kr) is one of the country’s premiere places to learn about Denmark’s seafaring past and present.
Set under-ground in the old dry docks next to the Castle, the building comprises a continuous ramp that loops around the dock walls, allowing for unobstructed views from the Castle. Inside, the technologically advanced, well-curated collections span Viking, medieval and modern seafaring, exploration and merchant shipping. There are other unique finds, including a colossal Maersk freight container, relics from Denmark’s conquests in Greenland, India, the West Indies and West Africa and – yes, really – the world’s oldest surviving ship’s biscuit (1852). The area is also the site of the Culture Yard (Mon–Fri 10am–9pm, Sat & Sun 10am–4pm; free), a theatre, concert venue, library and café-restaurant housed in an innovatively designed glass-steel structure created from old wharf buildings.