Taipei 101 worlds tallest building.

Taipei 101 is currently the worlds tallest building that is complete and this was the first world's tallest building completed in the 21st century. On July the 21st 2007 Taipei 101 was overtaken in height by the Burj Dubai in Dubai, UAE, upon the completion of that building's 141st floor. Taipei 101 retains the official title until the Burj Dubai is completed in 2009. International architectural standards define a "building" as a structure that can be occupied. The name of the building reflects its location in Taipei's 101 business district along with its floor count.

Taipei 101 is the first and currently only building in the world to break the half-kilometer mark in height and it has an indoor observation area on the 89th floor, and an outdoor observation deck on the 91st floor.
An 800-ton tuned mass damper (pictured here) helps stabilize the tower in high winds and earthquakes. This damper is an enormous ball of welded steel plates hanging inside the top of the building, and is visible from the restaurant and bar which encircles the space around the ball.

The design is inspired by traditional Chinese architecture, with a shape resembling a pagoda. The sectioned tower is also inspired by the bamboo plant, which is a model of strength, resilience, and elegance.
The tower's design specifications are based on the number "8", a lucky number in traditional Chinese culture; it features 8 upward-flaring sections, and is supported by 8 supercolumns. The Jin Mao Tower in Shanghai also employs this numerology in its design.

The elevators were new technology at the time, They are fastest in the world, rising at 1008 meters per minute (60.48 km/hour) and descending at 610 m/min (36.6 km/hour). The top speeds are 34 percent faster than the previous world's fastest elevators in Yokohama Landmark Tower. This is one of the few buildings in the world equipped with double-deck elevators. Each elevator is designed with an aerodynamic body, pressurization and emergency braking systems, and the world's first triple-stage anti-overshooting system. The cost for each elevator is over $US 2 million.