On the grounds of the former Meilahti Manor, between the Johannesbergintie and Meilahdentie streets and in a valley between three rocky outcrops lies Meilahti Arboretum. Covering more than three hectares, this peaceful and lush park presents over 140 varieties of trees and shrubs. The arboretum was founded by the Park Unit of the Public Works Department in 1967 as an educational park for everyone interested in plants. Accordingly, the trees and shrubs are identified by nameplates. There are two other arboreta in Helsinki, one in Niskala and the other in Viikki.