How does a hotel become a five star hotel?

The five star rating of a hotel normally indicates it is a luxury hotel. These are first class hotels with a 24 hour concierge. These are the types of hotel that will have valet parking, 24-hour bilingual reception and Doorman service. There will be a turn-down bed service. The rooms will have bars containing alcohol and/or non-Alcoholic Beverages. There will be food or snacks in the room and the hotel will usually have one or several fully staffed, full-service bars and restaurants.