CN Tower
"Guinness World Records" has called the CN Tower "the world's tallest self-supporting tower" and "the world's tallest free-standing tower". Although Guinness did list this description of the CN Tower under the heading "tallest building" at least once, it has also listed it under "tallest tower", omitting it from its list of "tallest buildings." In 1996, Guinness changed the tower's classification to "World's Tallest Building and Freestanding Structure". Emporis and the Council on Tall Buildings and Urban Habitat both listed the CN Tower as the world's tallest free-standing structure on land, and specifically state that the CN Tower is not a true building, thereby awarding the title of world's tallest building to Taipei 101, which is shorter than the CN Tower. The issue of what was tallest became moot when Burj Khalifa, then under construction, exceeded the height of the CN Tower in 2007 (see below).
Herbie Rides Again
"Hawk Plaza" is shown as a shining, twin-tower 130-story San Francisco skyscraper touted as "The World's Highest Building". Coincidentally, "The Towering Inferno", released six months later, featured "The Glass Tower," a shining, single-tower 138-story San Francisco skyscraper touted as "The Tallest Building in the World." In actuality, New York's twin towers of the World Trade Center, "The Tallest Buildings in the World" had officially opened in 1973, and Chicago's 108-story Sears Tower claimed that title in May 1974, just one month before "Herbie Rides Again" was released.