Tornado Tower vs John Hancock Center

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The Tornado Tower, also known as the QIPCO Tower, is a high tech office skyscraper in the city of Doha, Qatar. The building stands at a height of 640 feet (195 m) tall with 52 floors. Construction began in 2006 and has been completed in 2008. It's located on a 199,000 square foot plot of land, but only occupies 32,300 square feet of it, leaving plenty of open space around it to improve its aesthetic. The circular footprint of the building, using a 97-foot diameter at its base, includes a ground level restaurant and a bank, among other amenities. Sixteen elevators serve the approximate 904,000 square feet of office space the building contains.

The building is accompanied by 1500 automobile parking spaces housed within three levels of underground basement parking. Due to the hour glass shape of the building, the total rentable office space available on each floor varies from 13,560--25,800 square feet. This provides high flexibility in both the size of office space available and the design of office space on each floor. The top three floors of the tower are luxury office space and are surrounded by terraces and balconies. The top level of the VIP floors has direct access to a helicopter landing pad. It's the tenth largest building in the city of Doha.

Source: Wikipedia

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875 North Michigan Avenue, formerly the John Hancock Center, is a 100-story, 1,128-foot supertall skyscraper located in Chicago, Illinois. Located in the Magnificent Mile district, its title was changed to 875 North Michigan Avenue on February 12, 2018. However, despite this, the building is still colloquially referred to as the John Hancock Center. It had been built under the supervision of Skidmore, Owings and Merrill, with Peruvian-US chief designer Bruce Graham and Bangladeshi structural engineer Fazlur Rahman Khan. When the building topped out on May 6, 1968, it was the second-tallest building in the world and the tallest outside New York City. It's currently the fourth-tallest building in Chicago and the ninth-tallest in the USA, after One World Trade Center, the Willis Tower, 432 Park Avenue, the Trump Tower Chicago, the Empire State Building, the Bank of America Tower, 30 Hudson Yards and the Aon Center. When measured to the top of its antenna masts, it stands at 1,500 feet (457 m). The building is home to many offices and restaurants, in addition to about 700 condominiums. It also Includes the third-highest residence in the world, after the Burj Khalifa in Dubai and the Trump Tower in Chicago. The building was named for John Hancock Mutual Life Insurance Company, a developer and original tenant of the building. In 2018, John Hancock Insurance requested that its name be removed and the owner is seeking another naming rights deal.From the 95th floor restaurant, diners can look out at Chicago and Lake Michigan. The observatory (360 Chicago), which competes with the Willis Tower's Skydeck, has a 360° view of town, up to four states, and a space of over 80 miles (130 km). 360 Chicago is home to TILT, a moving platform that welcomes visitors across the edge of the skyscraper to a 30-degree angle, a full bar with local collections, Chicago's only open-air SkyWalk, and also features free interactive high definition touch screens in six languages. The 44th-floor sky lobby features America's highest indoor swimming pool.

Source: Wikipedia