As historic cemeteries begin to reach their capacity for full burials, alternative memorialization, such as collective memorials for cremated individuals, is becoming more common. Different cultures have different attitudes to destruction of cemeteries and use of the land for construction. In some countries it is considered normal to destroy the graves, while in others the graves are traditionally respected for a century or more. In many cases, after a suitable period of time has elapsed, the headstones are removed and the now former cemetery is converted to a recreational park or construction site. A more recent trend, particularly in South American cities, involves constructing high-rise buildings to house graves.