Māori people have a distinctive culture, much of which is based around the marae - the meeting place of an iwi (tribe) or hapu (subtribe). The word marae refers to the open ground in front of a wharenui (meeting house), although the word is sometimes used to refer simultaneously to the wharenui, the open space and other communal facilities.
The marae is a spiritual place where the dead are mourned, guests are housed, weddings are held, reunions are celebrated, and matters of importance to the community are discussed. Each iwi has a number of marae in its rohe (tribal area). In addition, there are also urban marae - set up as increasing numbers of Māori people migrate to urban areas. Urban marae typically serve as community centres for people from a number of iwi, and they have modern as well as traditional carvings and decorations. If you visit a marae with a group on a formal occasion, you will receive a ceremonial welcome. The ceremony will differ according to the kawa (protocol) of the iwi.
For more information, see The Treaty of Waitangi.