Managua that Managua will experience a severe earthquake every 50 years or less. Managua features four smaller crater lakes or lagoons within city limits. The most centrally located is the Tiscapa Lagoon in the Tiscapa Lagoon Natural Reserve. Managua, due to its tropical climate, varied topography, naturally fertile soils, and abundant rain and water sources, boasts a great variety of flora. Many different types of trees, some of which are not found elsewhere in the world, appear, including "chilamate"s, "ceibo"s, "pochote"s, "genízaro"s, "tigüilote"s, royal palms, "piñuela"s and "madroño"s (Nicaragua's national tree) surround the city. During the rainy season (May to November),
American Capital of Culture the OAS's countries). It has three major objectives: The initiative was devised and is promoted by the American Capital of Culture Organization, a body set up in 1997, with the objective of promoting the American Capital of Culture and other, complementary cultural initiatives, which help to use culture as a key element in the development of the countries of the Americas. Any territory of the countries of the American continent that wish to develop the objectives of the American Capital of Culture may apply to be chosen as American Capital of Culture. "Territory" is deemed to be any physical area