Taipei 101, named for its 101 floors, was the tallest building in the world when it opened in 2004, with a height of 1,674 feet; it lost the title to the Burj Khalifa in 2010. The building was originally known as the Taipei World Financial Center. The main part of the structure consists of eight stacked sections of eight floors each (Chinese numerology considers eight a lucky number); those sections resemble both floors of a pagoda as well as ancient Chinese money boxes (which themselves inspired the design of modern Chinese take-out containers). The upper floors of the building contain a tuned mass damper, a large round structure that absorbs vibrations and keeps the building from shaking during high winds and other inclement weather.