Land in a cemetery zone shall only be used for the operation of a cemetery and for cemetery purposes, including columbariums, crematories, churches, mausoleums, indoor and outdoor sarcophagi, mortuaries, flower shops, administrative buildings, dwellings for persons employed on the premises, storage and vault fabrication facilities, toolsheds, maintenance and garage buildings and other buildings and uses requisite to, necessary for or incident to the establishing, maintaining, operating, improving or conducting of a cemetery, interring human remains and the care, preservation and embellishment of cemetery property including, but not limited to, any activity or business designed for the benefit, service, convenience, education or spiritual uplift of property owners or persons visiting the cemetery.