In most countries a roof protects primarily against rain. In Persia the citizens used their roofs for milling wheat, farming, gardens and extra space. Depending upon the nature of the building, the roof may also protect against heat, sunlight, cold, snow and wind. Other types of structure, for example, a garden conservatory, might use roofing that protects against cold, wind and rain but admits light. A verandah may be roofed with material that protects against sunlight but admits the other elements.
The characteristics of a roof are dependent upon the purpose of the building that it covers, the available roofing materials and the local traditions of construction and wider concepts of architectural design and practice and may also be governed by local or national legislation.
Cusco (pron.: /ˈkuːzkoʊ/), often spelled Cuzco (Spanish: Cuzco, IPA: [ˈkuθko] or [ˈkusko]; Quechua: Qusqu or Qosqo, IPA: [ˈqɔsqɔ]), is a city in southeastern Peru, near the Urubamba Valley of the Andes mountain range. It is the capital of the Cusco Region as well as the Cuzco Province. In 2007, the city had a population of 358,935. Located on the eastern end of the Knot of Cuzco, its elevation is around 3,400 m (11,200 ft).