The Tower Hill Visitor Centre, completed in 1969 and opened in 1970, located in the central complex of volcanic cones, is an important public building designed by Melbourne architect Robin Boyd. Partly constructed from local limestone, he described his structure as a complete, one-piece, yet seemingly organic growth. Boyd was an avid conservationist and designed the building in harmony with nature, with the circular shape and sloping roof mirroring hilltops on the volcanic island.