One of the largest and most stunning conservatories was designed by renowned landscape architect Jens Jensen and was opened to the public in April 1908. This two-acre "Landscape art under glass" occupies contains many permanent plant exhibits incorporating specimens from around the world. The beautiful glass building is separated by theme and temperature/ humidity. There is a room for desert plants, one for food-producing plants, and a treehouse room for kids. Beautiful specimen plants, exquisitely well maintained. There are also ten-acre outdoor gardens.