Aria Resort and Casino is a luxury resort and casino part of the CityCenter complex on the Las Vegas Strip in Paradise Nevada. Aria consists of two curved glass and steel highrise towers adjoined at the center. It opened on December 16 2009 as a joint venture between MGM Resorts International and Infinity World Development.Aria contains 4004 hotel rooms .All rooms have a touch screen automation system which automatically adjusts curtains turns off unused lights and electronics and regulates the temperature when a guest enters or leaves the room.Aria Resort and Casino is a luxury resort and casino part of the CityCenter complex on the Las Vegas Strip in Paradise Nevada. Aria consists of two curved glass and steel highrise towers adjoined at the center. It opened on December 16 2009 as a joint venture between MGM Resorts International and Infinity World Development.Aria contains 4004 hotel rooms .All rooms have a touch screen automation system which automatically adjusts curtains turns off unused lights and electronics and regulates the temperature when a guest enters or leaves the room.