Nairobi fought fiercely to save the indigenous Karura Forest in northern Nairobi which was under threat of being replaced by housing and other infrastructure. Nairobi's western suburbs stretch all the way from the Kenyatta National Hospital in the south to the UN headquarters at Gigiri suburb in the north, a distance of about . The city is centred on the City Square, which is located in the Central Business District. The Kenyan Parliament buildings, the Holy Family Cathedral, Nairobi City Hall, Nairobi Law Courts, and the Kenyatta Conference Centre all surround the square. Under the Köppen climate classification, Nairobi has a
Nairobi and gurdwaras within the city. Prominent places of worship in Nairobi include the Cathedral Basilica of the Holy Family, All Saints Cathedral, Ismaili Jamat Khana, and Jamia Mosque. Nairobi has two informal nicknames. The first is ""The Green City in the Sun"", which is derived from the city's foliage and warm climate. The second is the ""Safari Capital of the World"", which is used due to Nairobi's prominence as a hub for safari tourism. There are a number of shopping malls in the Nairobi Area. These include: Garden city mall, Thika road mall (TRM), the West Gate mall, Prestige Plaza,