<Tr> <Th> Opening date </Th> <Td> December 15, 2010; 6 years ago (December 15, 2010) </Td> </Tr> <Tr> <Th> No. of rooms </Th> <Td> 3,027 </Td> </Tr> <Tr> <Th> Total gaming space </Th> <Td> 110,000 sq ft (10,000 m) </Td> </Tr> <Tr> <Th> Signature attractions </Th> <Td> The Chelsea The Chandelier Marquee Nightclub & Dayclub Rose . Rabbit . Lie . The Boulevard Pool P3 Art Studio </Td> </Tr>

How many floors is the cosmopolitan hotel in las vegas