Taipei 101 was the world's tallest building from 2004 to 2010. Its design resembles a stalk of bamboo, a symbol of strength and resilience in Asian culture. Because Taiwan is prone to both typhoons and earthquakes, the tower houses a massive 660-metric-ton steel pendulum called a 'Tuned Mass Damper' (TMD) between the 87th and 92nd floors. This pendulum sways to counteract the movement of the building caused by strong winds, reducing the building's sway by up to 40%. It is the only damper in the world on public display. The building's exterior features eight segments of eight floors each; the number eight is considered lucky in Chinese culture, representing abundance and good fortune.