On three islets in the Slotssøen (castle lake), it is adjoined by a large formal garden in the Baroque style.

After a serious fire in 1859, the castle was rebuilt on the basis of old plans and paintings. Thanks to public support and the brewer J. C. Jacobsen, its apartments were fully restored and reopened to the public as the Danish Museum of National History in 1882. Open throughout the year, the museum contains