protected under the National Register of Historic Places. Some of the main structures are highlighted below: Engineer's House (1894/1955) home to the Baltimore City Department of Recreation and Parks at 2600 Madison Avenue near the arched entrance Forestry Building/Wagon Shed (ca 1903–1914) home to the Baltimore City Forestry Division and TreeBaltimore's nursery at 3100 Shop Road High Service Reservoir Pumping Station/Aquarium/Reptile House (ca. 1914-1921/1938/1948) originally built as a pumping station, but is mostly remembered for housing the Baltimore Zoo's reptile collection from 1948 until 2004, and was previously Baltimore's first aquarium from 1938 until 1948. The building at Greenspring Avenue and Beechwood Drive is now vacant. Mansion House (1801) the only remaining building from the original Rogers estate (now part of the Maryland Zoo) Maryland House (1876) built for the 1876 Exposition in Philadelphia and reassembled in the park (now part of the Maryland Zoo) Superintendent's House (1872) "Stone House" now home to the Parks and People Foundation at 2100 Liberty Heights Avenue Western Pumping Station/Bath and Field House (1873/1924) now home to the Baltimore City Department of Recreation and Parks Headquarters at 3100 East Drive. Notes External links Druid Hill Park Partnership Baltimore Department of Recreation & Parks: Druid Hill Park Baltimore, Maryland, a National Park Service Discover Our Shared Heritage Travel Itinerary , including photo dated 1996, at Maryland Historical Trust, and accompanying map Druid Hill Park listing at CHAP includes map Druid Hill Park (lake) on Google Street View George A Frederick website Parks in Baltimore Historic districts on the National Register of Historic Places in Baltimore Baltimore National Heritage Area 1860 establishments in Maryland Baltimore City Landmarks