Hohenrode Park is the largest historical park in Nordhausen. In the 19th century, Nordhausen chewing tobacco manufacturer Carl Kneiff had the villa named after him and the surrounding green spaces built. The well-known architect Ludwig Bohnstedt and the garden artist Heinrich Siesmayer designed the grounds. In the style of English landscape gardens, Siesmayer planted predominantly native trees such as maple, lime, elm and oak, as well as some red-leaved, white-flowered horse chestnut and trumpet trees near the striking villa. Carl and later his son Fritz Kneiff were enthusiastic collectors of trees and shrubs. They expanded and enriched the park piece by piece, adding numerous rare trees and shrubs. Today, the freely accessible Hohenrode Park is the only Siesmeyer Park that has been preserved in its original form and has not been built over. A community foundation and a support association have been successfully working for years to preserve the 140-year-old historic park and restore Kneiff's Villa and other buildings such as the charming coach house, which now houses a café, and the classicist garden pavilion. Park Hohenrode was an outdoor location for the 2021 Federal Garden Show in Erfurt.