of glass that intercept heat. The latest glass technologies involve self-tinting glass that darkens as heat builds up during a summer's day and then lightens as the surface temperature of the glass cools later in the day. Gallery List of prominent conservatories Australia Ballarat Botanical Gardens Bicentennial Conservatory at Adelaide's Botanic Gardens Fitzroy Gardens, Melbourne Austria Palmenhaus Schönbrunn Belgium Royal Greenhouses of Laeken Canada Muttart Conservatory (Edmonton, Alberta) Bloedel Floral Conservatory (Vancouver, B.C.) Allan Gardens (Toronto, Ontario) Centennial Park Conservatory (Toronto, Ontario) Assiniboine Park Conservatory (Winnipeg, Manitoba) China Beijing Botanical Garden (Beijing) Shanghai Botanical Garden (Shanghai) South China Botanical Garden (Qingyang, Guangzhou) Denmark Copenhagen Botanical Gardens Germany Botanical Gardens and Botanical Museum, Berlin United Kingdom England Kew Gardens (southwest London) Chatsworth House (Derbyshire) Eden Project (Cornwall) Syon House (west London) Barbican Conservatory (central London) Anthaeum, Hove: built in 1830 with the world's largest dome, it collapsed on its opening day in 1833. Northern Ireland Belfast Botanic Gardens Scotland Royal Botanic Garden, Edinburgh Kibble Palace The Tollcross Winter Gardens, Glasgow Springburn Winter Gardens South Africa Pearson Conservatory, Port Elizabeth The Botanical Society Conservatory, Kirstenbosch National Botanical Garden, Cape Town Spain Palacio de Cristal del Retiro United States Amazon Spheres (Seattle, Washington) Anna Scripps Whitcomb Conservatory (Detroit, Michigan) Biosphere 2 (Oracle, Arizona) Birmingham Botanical Gardens (Birmingham, Alabama) Bolz Conservatory (Madison, Wisconsin) Buffalo and Erie County Botanical Gardens (Buffalo, New York) Cecil B. Day Butterfly Center (Pine Mountain, Georgia) Climatron (St. Louis) Conservatory of Flowers (San Francisco, California) Desert Garden Conservatory (San Marino, California) Denver Botanic Gardens (Denver, Colorado) Eleanor Armstrong Smith Glasshouse (Cleveland, OH) Enid Haupt Conservatory at New York Botanical Garden (New York) Foellinger-Freimann Botanical Conservatory (Fort Wayne) Fort Worth Botanic Garden (Fort Worth, Texas) Franklin Park Conservatory (Columbus, Ohio) Garfield Park Conservatory (Chicago, Illinois) Garfield Park Conservatory and Sunken Gardens (Indianapolis) Greater Des Moines Botanical Garden (Des Moines) Howard Peters Rawlings Conservatory and Botanic Gardens of Baltimore (Baltimore) Krohn Conservatory (Cincinnati) Lamberton Conservatory at Highland Park (Rochester, New York) Lena Meijer Conservatory at Frederik Meijer Gardens & Sculpture Park (Grand Rapids, Michigan) Lewis Ginter Botanical Garden Conservatory (Richmond, Virginia) Lincoln Park Conservatory (Chicago) Longwood Gardens (Kennett Square, Pennsylvania) Marjorie McNeely Conservatory (St. Paul) Mitchell Park Horticultural Conservatory (Milwaukee) Moody Gardens (Galveston) Myriad Botanical Gardens and Crystal Bridge Conservatory (Oklahoma City) Phipps Conservatory & Botanical Gardens (Pittsburgh) Steinhardt Conservatory (Brooklyn) Reiman Gardens (Ames, Iowa) United States Botanic Garden (Washington, D.C.) Volunteer