屋顶花园也叫空中花园。世界上最早的屋顶花园,是公元前5世纪巴比伦国王尼布甲尼撒为王后设计建造的,花园在石结构拱券式建筑物顶上,最高一层距地22.5米。考古学家认为这是“古代世界七大奇迹”之一。到了近代,美、英、加拿大、日本等国,在楼房顶部或阳台上构筑不同规模的空中花园。1959年,美国加利福尼亚奥克兰市,在六层楼顶建成第一座占地1.2公顷的凯泽中心屋顶花园。此后,屋顶花园越来越多。屋顶花园除种植草花、草坪、乔木、灌木,还应设立喷泉,水池、曲 Roof garden is also called sky garden. The world’s first roof garden, designed and built by King Babylonian king Nebuchadnezzar in the 5th century BC, is on the top of a stone arch structure with the tallest floor 22.5 meters above sea level. Archeologists think this is one of the “Seven Wonders of the Ancient World.” In the modern times, the United States, Britain, Canada, Japan and other countries, in the building roof or balcony on the construction of different sizes of the sky garden. In 1959, the city of Oakland, California, USA, built the first 1.2-hectare Kaiser Center Roof Garden on the six-storey roof. Since then, more and more roof garden. In addition to the roof garden planting grass flowers, lawns, trees, shrubs, but also the establishment of fountains, pools, music