BURJ KHALIFA : TALLEST BUILDING IN THE WORLD

Burj Khalifa prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. With a total height of 829.8 m (2,722 ft, just over half a mile) and a roof height (excluding antenna, but including a 244 m spire) of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, supplanting Taipei 101, the previous holder of that status.
Burj Khalifa was designed to be the centerpiece of a large-scale, mixed-use development to include 30,000 homes,[citation needed] nine hotels (including The Address Downtown Dubai), 3 hectares (7.4 acres) of parkland, at least 19 residential skyscrapers, the Dubai Mall, and the 12-hectare (30-acre) artificial Burj Khalifa Lake.
Building with most floors: 163 (previously World Trade Center - 110)
World's highest elevator installation (situated inside a rod at the very top of the building)
World's longest travel distance elevators: 504 m (1,654 ft)
World's highest nightclub: 144th floor
World's highest restaurant 122nd floor at 442 m
One thing you need to be aware of is, the price for Burj Khalifa ticket prices will be different based on the visiting time and on the levels of the building you plan on visiting. The most popular tickets are the “At the Top-level” that allow you to visit floors 124 and 125. The ticket prices for At the Top are more affordable. But these floors are also more crowded