High Quality Content by WIKIPEDIA articles! The Volunteer Park Conservatory is a botanical garden and conservatory located in Seattle, Washington, at the north end of Volunteer Park on Capitol Hill.Made up of 3,426 glass panes fit into a wood and iron framework, this Victorian-style greenhouse structure is modeled on London's Crystal Palace. Inside, the Volunteer Park Conservatory is divided into five display houses: bromeliads, ferns, palms, seasonal, and cacti and succulents.