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The Willis Tower, originally and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot (442.3 m) skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM), it opened in 1973 as the world's tallest ...
Galesville WKBT tower WKBT's transmitter, in Galesville, is located about 30 miles (48 km) north of the channel 8 studios in order to provide a clear signal to the entire market. If put up next to Chicago's Willis Tower (formerly known as the Sears Tower), the WKBT transmitter would surpass the upper roof and fall just about 100 feet (30 m ...
The North Tower stood 1,368 feet (417 m) tall [101] and featured a 362 foot (110 m) telecommunications antenna or mast that was built on the roof in 1979 (which was upgraded in 1999 to accommodate DTV broadcasts). With this addition, the highest point of the North Tower reached 1,730 feet (530 m). [102]
Willis Tower (formerly Sears Tower) was the highest in the final category: the greatest height to top of antenna of any building in the world at 527 m (1,729 ft). Burj Khalifa broke the height record in all four categories for completed buildings.
By about 1968, the production of Girder and Panel sets had stopped and did not start up again until about 1974, when Kenner, then owned by General Mills, produced the larger 1,100-piece Sears Tower set #72001 with black girders and panels, which could make a 5-foot-tall (1.5 m) model of the Sears Tower.
The replacement tower is 160 m (about 500 ft) shorter than the original. KXVO and KPTM in Omaha (which are co-owned) have an FCC construction permit to build a taller tower that would put their antennas 577 m (roughly 1,900 ft) up. There was also a 2,000 ft (610 m) tall mast at Hemingford, which collapsed in 2002
Read Fast Facts from CNN about Willis Tower, formerly the Sears Tower, located in Chicago. ... Height with the two antennas - 1,730 feet. Height of Skydeck/103rd floor - 1,353 feet.
According to the New York Times, critics of the project noted potential problems with the proposed towers' proximity to the extant Sears Tower. For example, the heights of the residential accommodations in the planned building would have placed residents within the radiation impact zone from the antennas atop the Sears Tower.