The Guinness World Records association acknowledged Monday the recently opened 354.7-meter JW Marriott Marquis in Dubai as the world\'s tallest hotel. The five-star hotel\'s general manager Rupprecht Queitsch received Monday the official Guinness World Record certificate, which he proudly presented to reporters. Located in the Business Bay in central Dubai near the city\'s main artery Sheikh Zayed Road, the twin-tower JW Marriot Marquis de-crowned Dubai\'s 333-meter high Rotana Rose Rayhaan, which is just a 1minute drive away from the Marquis and which has held the world record as the tallest hotel since its opening in January 2010. Opened to the public late last month, the 72-storey JW Marriott has 1,608 rooms and 10 restaurants, and offers its guest a stunning view on Dubai\'s financial district and the world\'s tallest tower, the 828-meter-tall mixed-use tower Burj Khalifa. The total development costs reached 1.8 billion dirhams (490.86 million U.S. dollars), according to U.S. hospitality group Marriott International.