The Palace Garden was originally a large Victorian Garden Palace. It was the venue of the 1879-1880 International Exposition held in Sydney. After burning down in 1882, the site became part of the Botanical Garden. The garden features a fountain and a sunken garden, the former for Governor Philip, the latter built in 1938 to commemorate the 150th anniversary of the European colonies. In the center is a statue of a Garden Palace that survived, and the surrounding flower beds are planted with various kinds of grass and flowers. The Palm Grove, built in 1851, is one of the most distinctive and historic botanical gardens. More than 140 species of palm plants, including Livistona australis, the most common species in Australia, are collected and displayed. Their young shoots are edible and their leaves can be made into straw hats. Spring is the best season for ornamentation. In addition, you can also see some towering ancient trees, which began to grow from seeds collected by botanists in the field in the 1920s and 1950s. Agathis robusta, planted in 1853, is the largest plant in the botanical garden. Other ancient trees include tea, Ceylon cinnamon and so on. The Fernery is adjacent to the Palm Garden, formerly the Governor's family garden. The tropical, subtropical and temperate ferns native to Australia and around the world are artistically arranged for educational purposes. The recently reformed fine steel structure shading system provides better conditions for growth. The first farm was the area where the first crops of colonial times were cultivated. Now it is divided into 14 parallel planting beds, part of which is still showing the style of the farm at that time, part of which is planted with plants arranged according to families, and the Rhododendron and Begonia are also collected here. The Lower Garden is a reclamation and reclamation area of the 19th century Farm Cove. It formed a series of falls and lakes by damming small streams in the park. Mexican fir and banyan trees were planted on the lakeside. The Tropical Center consists of two very modern buildings, with towers showing tropical plants in Australia and arc-shaped buildings collecting tropical plants outside Australia. The National Herbarium of South Wales is one of the two major Australian Herbarium collections. It mainly collects Australian plants. It has about 1 million specimens, including some collected by Joseph Banks in 1770.