47th All Japan Rugby Football Championship

The Tokyo subway sarin attack (地下鉄サリン事件, Chikatetsu Sarin Jiken, "Subway Sarin Incident") was an act of domestic terrorism perpetrated on 20 March 1995, in Tokyo, Japan, by members of the cult movement Aum Shinrikyo. In five coordinated attacks, the perpetrators released sarin on three lines of the Tokyo Metro (then Teito Rapid Transit Authority) during rush hour, killing 13 people, severely injuring 50 (some of whom later died), and causing temporary vision problems for nearly 1,000 others. The attack was directed against trains passing through Kasumigaseki and Nagatachō, where the Diet (Japanese parliament) is headquartered in Tokyo.The group, led by Shoko Asahara, had already carried out several assassinations and terrorist attacks using sarin, including the Matsumoto sarin attack nine months earlier. They had also produced several other nerve agents, including VX, and attempted to produce botulinum toxin and had perpetrated several failed acts of bioterrorism. Asahara had been made aware of a police raid scheduled for March 22 and had planned the Tokyo subway attack in order to hinder police investigations into the cult and perhaps spark the apocalypse they believed in. The leader also wanted to start a Third World War. In the raid following the attack, police arrested many senior members of the cult. Police activity continued throughout the summer, and over 200 members were arrested, including Asahara. Thirteen of the senior Aum management, including Asahara himself, were sentenced to death and later executed; many others were given prison sentences up to life. The attack remains the deadliest terrorist incident in Japan as defined by modern standards.

The Tokyo Metropolitan Government (東京都庁, Tōkyōto-chō) is the government of the Tokyo Metropolis. One of the 47 prefectures of Japan, the government consists of a popularly elected governor and assembly. The headquarters building is located in the ward of Shinjuku. The metropolitan government administers the special wards, cities, towns and villages that constitute part of the Tokyo Metropolis. With a population closing in on 14 million living within its boundaries, and many more commuting from neighbouring prefectures, the metropolitan government wields significant political power within Japan.

The Greater Tokyo Area is the most populous metropolitan area in the world, consisting of the Kantō region of Japan (including Tokyo Metropolis and the prefectures of Chiba, Gunma, Ibaraki, Kanagawa, Saitama, and Tochigi) as well as the prefecture of Yamanashi of the neighboring Chūbu region. In Japanese, it is referred to by various terms, one of the most common being Capital Region (首都圏, Shuto-ken). As of 2016, the United Nations estimates the total population at 38,140,000. It covers an area of approximately 13,500 km2 (5,200 mi2), giving it a population density of 2,642 people/km2. It is the second largest single metropolitan area in the world in terms of built-up or urban function landmass at 8,547 km2 (3,300 mi2), behind only the New York City metropolitan area at 11,642 km2 (4,495 mi2).

Tokyo (; Japanese: 東京, Tōkyō, [toːkʲoː] (listen)) is the capital and most populous city of Japan. Officially, central Tokyo is included in the Tokyo Metropolis (東京都, Tōkyō-to). Formerly known as Edo, its metropolitan area (including neighboring prefectures, 13,452 square kilometers or 5,194 square miles) is the most populous in the world, with an estimated 37.468 million residents as of 2018; the city proper has a population of 13.99 million people. Located at the head of Tokyo Bay, the prefecture forms part of the Kantō region on the central coast of Honshu, Japan's largest island. Tokyo serves as Japan's economic center and is the seat of both the Japanese government and the Emperor of Japan. Originally a fishing village named Edo, the city became politically prominent in 1603, when it became the seat of the Tokugawa shogunate. By the mid-18th century, Edo was one of the most populous cities in the world with a population of over one million people. Following the Meiji Restoration of 1868, the imperial capital in Kyoto was moved to Edo, which was renamed "Tokyo" (lit. 'Eastern Capital'). Tokyo was devastated by the 1923 Great Kantō earthquake, and again by Allied bombing raids during World War II. Beginning in the 1950s, the city underwent rapid reconstruction and expansion efforts, going on to lead the Japanese economic miracle. Since 1943, the Tokyo Metropolitan Government has administered the prefecture's 23 special wards (formerly Tokyo City), various commuter towns and suburbs in its western area, and two outlying island chains known as the Tokyo Islands. Tokyo is the second-largest urban economy worldwide by gross domestic product after New York City, and is categorized as an Alpha+ city by the Globalization and World Cities Research Network. It is also Japan's leading business hub as part of an industrial region that includes the cities of Yokohama, Kawasaki, and Chiba. As of 2021, Tokyo is home to 37 companies of the Fortune Global 500. In 2020, the city ranked fourth on the Global Financial Centres Index, behind only New York City, London, and Shanghai. Tokyo is home to the world's tallest tower, Tokyo Skytree, and the world's largest underground floodwater diversion facility, the Metropolitan Area Outer Underground Discharge Channel (located in Kasukabe, Saitama, a suburb of Tokyo). The Tokyo Metro Ginza Line, opened in 1927, is the oldest underground metro line in East Asia. Recognized as one of the most livable cities in the world, Tokyo was tied fourth with Wellington in the 2021 Global Livability Ranking.The city has hosted multiple international events, including the 1964 Summer Olympics and 1964 Summer Paralympics, the 2020 Summer Olympics and 2020 Summer Paralympics (postponed; held in 2021), and three summits of the G7 (in 1979, 1986, and 1993). Tokyo is an international research and development hub and is likewise represented by several major universities, most notably the University of Tokyo. Tokyo Station is the central hub for Japan's high-speed railway network, the Shinkansen; Shinjuku Station in Tokyo is also the world's busiest train station. Notable special wards of Tokyo include: Chiyoda, the site of the National Diet Building and the Tokyo Imperial Palace; Shinjuku, the city's administrative center; and Shibuya, a commercial, cultural, and business hub.

The Tokyo Metropolitan Government Building (東京都庁舎, Tōkyō-to Chōsha), also referred to as the Tochō (都庁) for short, is the seat of the Tokyo Metropolitan Government, which governs the special wards, cities, towns, and villages that constitute the Tokyo Metropolis. Located in Shinjuku ward, the building was designed by architect Kenzo Tange. It consists of a complex of three structures, each taking up a city block. The tallest of the three is the Tokyo Metropolitan Government Building No.1, a tower 48 stories tall that splits into two sections at the 33rd floor. The building also has three levels below ground. The design of the building was meant to resemble an integrated circuit, while also evoking the look of a Gothic cathedral. It is the tallest city hall in the world.The other two buildings in the complex are the eight-story Tokyo Metropolitan Assembly Building (including one underground floor) and Tokyo Metropolitan Government Building No. 2, which has 37 stories including three below ground. The two panoramic observation decks, one in each tower on floor 45 (202 meters (663 ft) high), are free of charge to the public and contain gift shops and cafes. The two observation decks are open between 9:30 and 23:00 on alternate days.

Tochōmae Station (都庁前駅, Tochōmae-eki, Metropolitan Government Station) is a subway station on the Toei Ōedo Line in Shinjuku, Tokyo, Japan, operated by the Tokyo subway operator Toei Subway.

The Shinjuku Oak Tower (新宿オークタワー) is a skyscraper located in Shinjuku, Tokyo, Japan. Construction of the 184-metre, 38-storey skyscraper was finished in 2002.

Shinjuku Niagara Falls is a fountain in Tokyo's Shinjuku Central Park, in Shinjuku, Japan. The Tokyo Weekender has described the water feature as "generously named".

Shinjuku Central Park (新宿中央公園, Shinjuku chūō kōen) is a park in western Shinjuku, Tokyo, Japan. The park is bordered by Honnnan Dori and Kita Dori to the north, Junisha Dori to the west, Suido Dori or Minami Dori to the south, and Koen Dori to the east. The park is located directly in front of the Tokyo Metropolitan Government Building, and is surrounded by some of Tokyo's tallest buildings including the Hyatt Regency Tokyo, the Park Hyatt, and other hotels and office buildings.The park is accessible for the many office workers in the area and an ideal place for them to spend their lunch time. You can also see the belongings of homeless people carefully wrapped up in blue plastic ready to be unpacked at night time. Shinjuku Central Park is different from Shinjuku Gyo-en, located on the south-eastern side of Shinjuku Station. Right next to the park is Tochomae Station, which is served by the Toei Ōedo Line.

The Union of Japanese Scientists and Engineers (JUSE) (Japanese: 日本科学技術連盟), was established in May 1946 by the Science and Technology Agency (now known as the Ministry of Education, Culture, Sports, Science and Technology) of the Government of Japan "To cope with the rapid advancement of society". Kenichi Koyanagi and Ichiro Ishikawa were founders of the JUSE.

The Shinjuku Mitsui Building (新宿三井ビル, Shinjuku Mitsui Biru) is a high-rise building in Nishi-Shinjuku, Shinjuku, Tokyo. It is owned by Mitsui Fudosan. It is one of the ten tallest buildings in Tokyo, and was the tallest building in Tokyo and Japan from September 1974 to March 1978, when Sunshine 60 was completed.It was built in the style of high-rise buildings that were being built in the United States in the 1970s. It is notable for the black diagonal braces on its east and west facades. At the base of the skyscraper is a sunken garden and a surprisingly large plaza. In addition to the sunken garden, there is also a roof-top garden. With its black facades, Shinjuku Mitsui Building stands out among the skyscrapers in Shinjuku. It is located next to the Shinjuku Center Building, which is two meters lower but appears to be taller because its first floor is located on higher ground. It made an appearance in the 1984 film The Return of Godzilla.

Nishi-Shinjuku (西新宿, lit. 'West Shinjuku') is a skyscraper business district in Shinjuku, Tokyo, Japan. This region was previously called Tsunohazu (角筈). Nishi-Shinjuku was Tokyo's first major foray into building skyscrapers with the first appearing in the 1970s with Keio Plaza Inter-Continental. It is the location of the Tokyo Metropolitan Government Building, the headquarters of the Tokyo Metropolitan Government. Progress continues in Nishi-Shinjuku, which is heading away from the city centre and has the site of the proposed Nishi-Shinjuku 3-Chōme Redevelopment, with plans for what will be three of the four tallest buildings in Japan.