NTT DoCoMo Yoyogi Building
Encyclopedia
The is a skyscraper
Skyscraper
A skyscraper is a tall, continuously habitable building of many stories, often designed for office and commercial use. There is no official definition or height above which a building may be classified as a skyscraper...

 located in the Shibuya
Shibuya, Tokyo
is one of the 23 special wards of Tokyo, Japan. As of 2008, it has an estimated population of 208,371 and a population density of 13,540 persons per km². The total area is 15.11 km²....

 in Tokyo
Tokyo
, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. At 240 metres (787.4 ft) tall, it is the third tallest building in Tokyo. After the installation of a clock in 2002, the building became the tallest clock tower in the world.

Function

The NTT Docomo Yoyogi Building is owned by the NTT Docomo
NTT DoCoMo
is the predominant mobile phone operator in Japan. The name is officially an abbreviation of the phrase, "do communications over the mobile network", and is also from a compound word dokomo, meaning "everywhere" in Japanese. Docomo provides phone, video phone , i-mode , and mail services...

 group. Despite the building's name, it is not the head office for the company, whose headquarters are located in the top floors of the Sannō Park Tower
Sanno Park Tower
The is a 44-story skyscraper located in Nagatachō, Chiyoda, Tokyo, Japan. It is the second highest building of the ward, after the Shin-Marunouchi Building....

. The building houses some offices, but is mainly used to house technical equipment (switching equipment, etc.) for the company's cellular telephone service.

To commemorate NTT Docomo's 10th anniversary, a 15-metre-diameter clock was put into operation in November 2002. The installation of this clock made the building the tallest clock tower in the world, surpassing the Palace of Culture and Science in Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

, which had added a clock in 2000. The upper portion of the building also features colored lights that indicates if the weather forecast calls for rain on that day.

Solar energy is partially used to power the building. A garbage separation system employed within the office helps to reduce waste and increase the recycling rate. The waste water is recycled for reuse, and rainwater is reused for the building's toilets.

The building does not have any restaurants or other tourist attractions, tourists are not allowed into the building.

See also

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