Architecture is the practice of designing buildings and structures for both practical and artistic reasons. When an architect designs a building or structure, he or she must keep in mind how the building is to be used, how to make it human-friendly, how safe and strong the building needs to be, and how it communicates ideas and experiences. While safety and stability are always a top priority, the other goals may vary in importance. Architecture can be broken down into subcategories. For example, domestic architecture deals with the design of homes, apartment buildings, and other dwellings. Recreational architecture involves places like museums and stadiums. Religious architecture is the design of churches, temples, shrines, and other places of worship.