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Parks and forests

Madrid has the second highest number of aligned trees in the world, with 248,000 units, only exceeded by Tokyo. Madrid's citizens have access to a green area within a 15-minute walk. Since 1997, green areas have increased by 16%. At present, 8.2% of Madrid's grounds are green areas, meaning that there are 16 m (172 sq ft) of green area per inhabitant, far exceeding the 10 m (108 sq ft) per inhabitant recommended by the World Health Organization.

A great bulk of the most important parks in Madrid are related to areas originally belonging to the royal assets (including El Pardo, Soto de Viñuelas, Casa de Campo, El Buen Retiro, la Florida and the Príncipe Pío hill, and the Queen's Casino). The other main source for the "green" areas are the bienes de propios owned by the municipality (including the Dehesa de la Villa, the Dehesa de Arganzuela or Viveros).

El Retiro is the most visited location of the city. Having an area bigger than 1.4 km (0.5 sq mi) (350 acres), it is the largest park within the Almendra Central, the inner part of the city enclosed by the M-30. Created during the reign of Philip IV (17th century), it was handed over to the municipality in 1868, after the Glorious Revolution. It lies next to the Royal Botanical Garden of Madrid.

Located northwest of the city centre, the Parque del Oeste ("Park of the West") comprises part of the area of the former royal possession of the "Real Florida", and it features a slope as the height decreases down to the Manzanares. Its southern extension includes the Temple of Debod, a transported ancient Egyptian temple.

Other urban parks are the Parque de El Capricho, the Parque Juan Carlos I (both in northeast Madrid), Madrid Río, the Enrique Tierno Galván Park, the San Isidro Park as well as gardens such as the Campo del Moro (opened to the public in 1978) and the Sabatini Gardens (opened to the public in 1931) near the Royal Palace.

Further west, across the Manzanares, lies the Casa de Campo, a large forested area with more than 1700 hectares (6.6 sq mi) where the Madrid Zoo, and the Parque de Atracciones de Madrid amusement park are located. It was ceded to the municipality following the proclamation of the Second Spanish Republic in 1931.

The Monte de El Pardo is the largest forested area in the municipality. A holm oak forest covering a surface over 16,000 hectares, it is considered the best preserved mediterranean forest in the Community of Madrid and one of the best preserved in Europe. Already mentioned in the Alfonso XI 's Libro de la montería from the mid-14th century, its condition as hunting location linked to the Spanish monarchy help to preserve the environmental value. During the reign of Ferdinand VII the regime of hunting prohibition for the Monte de El Pardo became one of full property and the expropriation of all possessions within its bounds was enforced, with dire consequences for the madrilenians at the time. It is designated as Special Protection Area for bird-life and it is also part of the Regional Park of the High Basin of the Manzanares.

Other large forested areas include the Soto de Viñuelas, the Dehesa de Valdelatas and the Dehesa de la Villa. As of 2015, the most recent big park in the municipality is the Valdebebas Park. Covering a total area of 4.7 km (1.8 sq mi), it is sub-divided in a 3.4 km (1.3 sq mi) forest park (the Parque forestal de Valdebebas-Felipe VI), a 0.8 km (0.31 sq mi) periurban park as well as municipal garden centres and compost plants.