Burj Khalifa vs White House

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The Burj Khalifa (Arabic: ??? ?????, Arabic pronunciation: [b?rd?? xa?li?fa]; pronounced English: ), known as the Burj Dubai prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. With a total height of 829.8 m (2,722 feet, just over half a mile) and a roof height (excluding antenna, but such as a 244 m spire) of 828 m (2,717 feet ), the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009 (preceded by Taipei 101).Construction of the Burj Khalifa began in 2004, with the exterior finished five decades later in 2009. The principal structure is reinforced concrete. The building was opened in 2010 as part of a new development called Downtown Dubai. It is designed to be the centrepiece of large-scale, mixed-use development. The decision to construct the building relies on the government's decision to diversify from an oil-based economy, and for Dubai to obtain international recognition. The building was originally named Burj Dubai but was renamed in honour of the ruler of Abu Dhabi and president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan; Abu Dhabi and the UAE government lent Dubai money to pay its debts. The building broke numerous height records, including its designation as the tallest building in the world. Burj Khalifa was designed by Adrian Smith, of Skidmore, Owings & Merrill, whose firm designed the Willis Tower and One World Trade Center. Hyder Consulting was selected to be the supervising engineer with NORR Group Consultants International Limited selected to supervise the architecture of this project. The design is derived from the Islamic architecture of the region, such as in the Great Mosque of Samarra.

The Y-shaped tripartite floor geometry is designed to optimize residential and hotel room. A buttressed central core and wings are utilised to support the elevation of the building. Although this design was derived from Tower Palace III, the Burj Khalifa's central center homes all vertical transport with the exception of egress stairs within each of the wings. The structure also offers a cladding system which is designed to withstand Dubai's hot summer temperatures. It comprises a total of 57 elevators and 8 escalators. At a particular stage in the architectural and engineering process, the original Emaar programmers experienced financial problems, and required more money and financial funding. Sheikh Khalifa, the ruler of the United Arab Emirates, granted monetary aid and financing, hence resulting in the changing of the name to'Burj Khalifa'. The concept of profitability derived from creating high density developments and malls around the landmark have proven effective. Its surrounding malls, hotels and condos in Downtown Dubai have generated the most revenue from the project as a whole, while the Burj Khalifa itself made little or no profit.Critical reception to Burj Khalifa has been generally positive, and the building has received many awards. However, there were numerous complaints regarding migrant workers from South Asia who were the key building labor force. These centered on low wages and the practice of confiscating passports until duties were complete. Several suicides were reported.

Source: Wikipedia

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The White House is the official residence and workplace of the president of the United States.

It is located at 1600 Pennsylvania Avenue NW in Washington, D.C., and has been the home of each U.S. president since John Adams in 1800. The term 'White House' is often used as a metonym for the president and his advisers. The home was designed by Irish-born architect James Hoban in the neoclassical style. Hoban modelled the construction on Leinster House in Dublin, a building which houses the Oireachtas, the Irish legislature. Construction took place between 1792 and 1800 using Aquia Creek sandstone painted white. When Thomas Jefferson moved into the home in 1801, he (with architect Benjamin Henry Latrobe) added reduced colonnades on each wing which concealed stables and storage. In 1814, during the War of 1812, the mansion had been set ablaze by the British Army in the Burning of Washington, destroying the interior and charring a lot of the exterior. Reconstruction began almost immediately, and President James Monroe moved into the partially rebuilt Executive Residence in October 1817. Exterior building continued with the inclusion of the semi-circular South portico in 1824 and the North portico in 1829. Because of crowding inside the executive order , President Theodore Roosevelt had work offices relocated to the newly constructed West Wing in 1901. Eight years later in 1909, President William Howard Taft enlarged the West Wing and created the first Oval Office, which was finally moved as the section was expanded. In the main mansion, the third-floor attic was converted into living quarters in 1927 by augmenting the present hip roof with long shed dormers. A newly constructed East Wing was used as a reception area for social occasions; Jefferson's colonnades connected the new wings. East Wing alterations were completed in 1946, creating additional office space. By 1948, the residence's load-bearing exterior walls and internal wood beams were found to be close to collapse. Under Harry S. Truman, the interior chambers were completely dismantled and a new internal load-bearing steel frame constructed within the walls. Once this work was completed, the interior rooms were rebuilt. The modern-day White House complex involves the Executive Residence, West Wing, East Wing, the Eisenhower Executive Office Building--the former State Department, which now houses offices for the president's staff and the vice president--and Blair House, a guest residence. The Executive Residence is made up of six stories--the Ground Floor, State Floor, Second Floor, and Third Floor, as well as a two-story basement. The property is a National Heritage Site owned by the National Park Service and is part of the President's Park. In 2007, it was ranked second on the American Institute of Architects list of'America's Favorite Architecture'.

Source: Wikipedia