In the years 1775-76 Count Henry Ernest of Stolberg-Wernigerode had a grand hunting lodge built on the Königskoll in the Huysburger Häu south of Ilsenburg.
The kitchen staff building became a restaurant when the Princes of Stolberg-Wernigerode were dispossessed after the Second World War, and it was later joined structurally to the old hunting lodge.
Numerous footpaths converge on Plessenburg from the surrounding area; from Ilsenburg, Drübeck, Darlingerode, Wernigerode and Bad Harzburg.
In addition there is a summer bus route from Wernigerode via Ilsenburg to Plessenburg (from the beginning of May to the end of October).
Plessenburg and the Oberförster Koch Memorial are numbers 7 and 25 in the system of checkpoints on the Harzer Wandernadel hiking network.