Question: Jingming Garden is an imperial garden on the Jade Spring Hill west of a palace that covers how many kilometers ?
Context: Spring Hill Nurseries is a mail-order garden center based in Tipp City, Ohio.  Founded in 1849, Spring Hill Nurseries is one of the oldest gardening companies in the United States.  The company specializes in garden plants, garden designs, perennials, shrubs, ground covers and gardening supplies.  Spring Hill distributes catalogs nationwide and maintains a substantial presence online.  One of the largest companies in the gardening industry, Spring Hill Nurseries’ headquarters features many acres of greenhouses and trial gardens. Jade Spring Hill () is located to the west of the Summer Palace in Beijing, China.  It was also formerly known as Jingming Palace or Jingming Garden.  It is named after the Jade Spring.  It is the location of the Xiangji Temple, the Yufeng Pagoda, the Jinxing Palace and the Furong Palace.  Jade Spring Hill is the villa area of the Central Military Commission (CMC) today, and is not open to the public. Jingming Garden () is an imperial garden on the Jade Spring Hill in Beijing, China, west of the Summer Palace.  It is one of Major Historical and Cultural Site Protected at the National Level. The The Advertiser News is a weekly newspaper in Spring Hill, Tennessee.  It is owned and published by GateHouse Media Inc..  The newspaper is published once a week, every Wednesday.  Its Newspaper Designated Market (N.D.M.) stretches into two cities in two separate counties in Middle Tennessee.  It is primarily distributed to zip code 37174 Spring Hill (both the Maury County, Tennessee side and the Williamson County, Tennessee side and zip code 37179 Thompson's Station, Tennessee.  It is a Total Market Coverage "(T.M.C.)" paper and is delivered to 99% of all deliverable mailing addresses in those zip codes.  It is the only newspaper that reaches both sides of Spring Hill with full saturation.  Two daily papers are distributed in Spring Hill but one primarily on the Williamson County side and one primarily on the Maury County side. Spring Hill is a neighborhood on Pittsburgh, Pennsylvania's North Side.  Spring Hill was named for the abundance of springs near the site.  According to a 1977 Neighborhood Atlas, "Germans immigrated there from 1850 to 1920, giving the neighborhood a Bavarian atmosphere.  Local street names include Rhine, Woessner, Haslage, Zoller and Goehring.  In 1959 ACTION-Housing opened Spring Hill Gardens, a moderate rent, racially integrated, 209-unit apartment project at Buente and Rhine Streets.  Spring Hill Gardens was Pittsburgh's first multi-family housing project backed by the Federal Housing Authority." Spring Hill, East Cowes is an estate on the Isle of Wight, England, the centre-piece of which is the large landmark manor house of the same name.  It was to become the family home of the Shedden family.  The estate is ideally placed, having sweeping views over The Solent.  It currently occupies 22 acres, although in years gone by, it was much bigger, probably amounting to around 100 acres.  However, even today, it still encompasses Spring Hill House, a farmhouse, farm cottage, a gatehouse, one other large residence and around half a dozen fields.  From the 1800s, East Cowes contained four prominent estates, with Spring Hill being amongst the first of them to be built.  Spring Hill lay between East Cowes Castle and Norris Castle, with Osborne House, the country estate of Queen Victoria, close by. The Summer Palace (), is a vast ensemble of lakes, gardens and palaces in Beijing, China.  It serves as a popular tourist destination and recreational park.  Mainly dominated by Longevity Hill () and Kunming Lake, it covers an expanse of 2.9 km2 , three-quarters of which is water. Achabal Garden is one of the most important and splendid tourist places in the state of Kashmir and is about 8 kilometers away from Anantnag.  It was in the state of Kashmir that the Mughal style gardens was brought to perfection and Achabal is one such masterpiece.  This place is famous all over due to an ancient spring surrounded by a terrace garden, which was developed by Mughals.  The historical significance of this place strikes the visitor with awe.Achabal Garden, once the pleasure retreat of the Mughal Empress Noor Jahan is a beautifully created garden in Kashmir with its own special allure and character.  Its picturesque beauty makes it one of the best Mughal gardens of the Indian subcontinent.  It is difficult to describe in words the mesmerizing beauty of this Mughal style garden.  The upper portion of the garden is popularly known as `Bag-e-Begum Abad` and was developed by Malika Noor Jehan Begum in 1620 A.D. Later it became renowned as Sahib Abad in which there was a `Hamam` or treasure of water getting heat from a logical lamp or `tosng`.  The garden was created at the site of a powerful spring, which enters the garden as a waterfall.  The design of this wonderfully created garden is ascribed to the beloved wife of the Mughal Emperor Jahangir.  The Garden of Achabal is located at the foot of a hill covered with dense forest, which is 8 kilometers from Anantnag and 56 kilometers from Srinagar.  The daughter of the Mughal monarch Shah Jahan built the garden in the year 1620 with cascading outpourings and pavilions.  The most beautiful of all springs is Achabal and it gushes out of the Sosanwar Hill.  In the garden of Achabal the water gushes out of the spasm with great vigor throughout the entire year.  In the later ages the Mughal prince Dara Shikoh built a mosque in the garden.  There is also a trout farm for seed fish nearby.  There are tourist bungalows and tourist huts nearby where the tourists can spend some moments in the lap of the beautiful setup.  This garden is universally regarded as a visual treat for the eyes.  This garden is also well adorned with sprawling Chinar trees.  Stepped terraces, ornamental shrubs and conventional elegance, are the added attraction, which not only mesmerizes one but also attracts thousands of tourists from all over the globe every year.  Accommodation is available at the nearby tourist bungalows or rest houses.  Achabal not only serves as a breathtaking splendor but also is a reviving experience for all tourists. The Old Summer Palace, known in Chinese as Yuanming Yuan (), and originally called the Imperial Gardens (), was a complex of palaces and gardens in present-day Haidian District, Beijing, China.  It is located 8 km northwest of the walls of the former Imperial City section of Beijing.  Constructed throughout the 18th and early 19th centuries, the Old Summer Palace was the main imperial residence of Qianlong Emperor of the Qing dynasty and his successors, and where they handled state affairs; the Forbidden City was used for formal ceremonies.  Widely conceived as the pinnacle work of Chinese imperial garden and palace design, the Old Summer Palace was an architectural wonder, known for its extensive collection of garden, its building architecture and numerous art and historical treasures.  It was reputed as the "Garden of Gardens" () in its heyday. The Jade Peak Pagoda () is a Chinese pagoda on Jade Spring Hill in the Summer Palace in Beijing, China.  The site was originally an imperial retreat during the Liao Dynasty (907–1125) and was renovated by the Qianlong Emperor (r. 1735–1796) in 1752.
Answer: 2.9 km2