Burj Khalifa
Lets move to the other end of Dubai Mall , here you will find sky touching Pride of Dubai, World's Largest Building... Burj Khalifa.
as per Wikipedia, its Records are
Tallest existing structure: 829.8 m (2,722 ft)
Tallest structure ever built: 829.8 m (2,722 ft)
Tallest freestanding structure: 829.8 m (2,722 ft)
Tallest skyscraper (to top of spire): 829.8 m (2,722 ft)
Building with most floors: 163 (previously World Trade Center ? 110)
Building with world's highest occupied floor: 584.5 m (1,918 ft)
World's longest travel distance elevators: 504m (1,654 ft)
Highest vertical concrete pumping (for a building): 606 m (1,988 ft)
World's tallest structure that includes residential space
World's highest nightclub: 144th floor
World's highest restaurant : 122nd floor at 442 m (1,450 ft)
World's highest New Year display of fireworks.
World's second highest swimming pool: 76th floor(world's highest swimming pool is located on 118th floor of Ritz-Carlton Hotel at International Commerce Center, Hong Kong)