Big Ben vs Two Prudential Plaza

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Big Ben is the nickname for the Great Bell of the striking clock in the north end of the Palace of Westminster in London; the name is often extended to refer to both the clock and the clock tower. The official name of this tower in which Big Ben is located was originally the Clock Tower; it was renamed Elizabeth Tower in 2012 to mark the Diamond Jubilee of Elizabeth II, Queen of the uk. The tower was designed by Augustus Pugin at a neo-Gothic style. When completed in 1859, its clock was the largest and most accurate four-faced striking and chiming clock on the planet. The tower stands 315 ft (96 m) tall, and the climb from ground level to the belfry is 334 steps. Its foundation is square, measuring 39 ft (12 m) on each side. Dials of the clock are 23 feet (7.0 m) in diameter. On 31 May 2009, celebrations were held to mark the tower's 150th anniversary.Big Ben is the biggest of the tower's five bells and weighs 13.5 long tons (13.7 tonnes; 15.1 short tons). It was the biggest bell in the United Kingdom for 23 years. The origin of this bell's nickname is open to question; it might be named after Sir Benjamin Hall, who oversaw its own installation, or heavyweight boxing champion Benjamin Caunt.

Four quarter bells chime at 15, 30 and 45 minutes past the hour and just before Big Ben tolls on the hour. The clock uses its first Victorian mechanics, but an electric motor can be applied as a backup. The tower is a British cultural icon recognised all over the world. It is among the most prominent symbols of the uk and parliamentary democracy, and it is often used in the establishing shot of films set in London. The clock tower has been a part of a Grade I listed building since 1970 and a UNESCO World Heritage Site since 1987. On 21 August 2017, a four-year schedule of renovation works began on the tower, which are to include the addition of a lift. In addition, there are plans to re-glaze and repaint the clock dials. With a few exceptions, such as New Year's Eve and Remembrance Sunday, the bells should be silent until the work is completed in 2021.

Source: Wikipedia

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Two Prudential Plaza is a 64-story skyscraper located in the Loop area of Chicago, Illinois, United States.

At 995 ft (303 m) tall, it's now the sixth-tallest building in Chicago and the seventeenth-tallest in the U.S., being only five feet from 1,000 ft, making it the closest of any building under 1,000. Built in 1990, the building was designed by the firm Loebl Schlossman & Hackl, with Stephen T. Wright as the principal in charge of design. It has been honored with 8 awards, including winning the Best Structure Award from the Structural Engineers Association of Illinois in 1995. At the time of completion, Two Prudential was the world's tallest reinforced concrete building. Its distinctive shape features stacked chevron setbacks on the north and south sides, a pyramidal peak rotated 45°, and an 80-foot (24 m) spire. The building is attached to One Prudential Plaza (formerly called the Prudential Building). With no spire, the building's height is still slightly greater than that of One Prudential Plaza's pinnacle.In May 2006, BentleyForbes, a Los Angeles-based property investment firm, run by Frederick Wehba and his family bought Two Prudential Plaza, along with its sister property, One Prudential Plaza for $470 million.In 2015, BentleyForbes defaulted on the mortgage for the towers on account of the terrific Recession and New York-based investors 601W Firms and Berkley Properties took control of the property after investing more than $100 million in equity to recapitalize. BentleyForbes, the former controlling owner of the towers, continues to have an interest in the owning partnership.The building is also the new home of the Chicago Tribune and tronc, Inc. after leaving Tribune Tower in July 2018.

Source: Wikipedia