National Archives of Japan

The Tokyo National Museum of Modern Art (東京国立近代美術館, Tōkyō Kokuritsu Kindai Bijutsukan) in Tokyo, Japan, is the foremost museum collecting and exhibiting modern Japanese art.This Tokyo museum is also known by the English acronym MOMAT (National Museum of Modern Art, Tokyo). The museum is known for its collection of 20th-century art and includes Western-style and Nihonga artists.

Edo Castle Gates (江戸城三十六見附) are the gates of Edo Castle in Tokyo. They were placed at crossing points (bridges) of castle moats. Originally, there were 36gates in all. Some remain, others completely demolished. Today, the central quarter of the castle is Tokyo Imperial Palace. So, some gates on the inner moats are still used as security check points. However, most on the outer moats don't exist. Some district in Tokyo are named after the castle gates.Gate is "Mon" (門) in Japanese. Bridge is "Hashi" or "Bashi" (橋).

The Ōoku (大奥, "great interior") refers to the women's quarters of Edo Castle, the section where the women connected to the reigning shōgun resided. Similar areas in the castles of powerful daimyō, such as the Satsuma Domain, were also referred to by this term.

Edo Castle (江戸城, Edo-jō), also known as Chiyoda Castle (千代田城, Chiyoda-jō), is a flatland castle that was built in 1457 by Ōta Dōkan. It is today part of the Tokyo Imperial Palace and is in Chiyoda, Tokyo (then known as Edo), Toshima District, Musashi Province. Tokugawa Ieyasu established the Tokugawa shogunate there. It was the residence of the shōgun and location of the shogunate, and also functioned as the military capital during the Edo period of Japanese history. After the resignation of the shōgun and the Meiji Restoration, it became the Tokyo Imperial Palace. Some moats, walls and ramparts of the castle survive to this day. However, the grounds were more extensive during the Edo period, with Tokyo Station and the Marunouchi section of the city lying within the outermost moat. It also encompassed Kitanomaru Park, the Nippon Budokan Hall and other landmarks of the surrounding area.

Takebashi Station (竹橋駅, Takebashi-eki) is a station on the Tokyo Metro Tozai Line in Chiyoda, Tokyo, Japan. Its station designation is T-08. It is located directly underneath the headquarters of the Mainichi Shimbun in the Palaceside Building and is directly adjacent to the northern edge of the Imperial Palace grounds. The station is also convenient to such attractions as the National Museum of Modern Art, Tokyo (3 minute walk), and the Japan Science Foundation's Science Museum (7 minute walk).

Hibiya (日比谷) is a colloquial name for a neighborhood of Chiyoda Ward in Tokyo. The area along Hibiya Street (National Route 1) from Yūrakuchō to Uchisaiwaichō is generally considered Hibiya district. Administratively, it is part of the Yūrakuchō district. There is no actual administrative district in Chiyoda called "Hibiya" but the name is used in some local place names such as Hibiya Park and Hibiya Station (administratively in Yūrakuchō). Hibiya was part of the old Kōjimachi ward in Tokyo City, before it was transformed into a metropolis.

Chiyoda (千代田区, Chiyoda-ku) is a special ward located in central Tokyo, Japan. It is known as Chiyoda City in English.It was formed in 1947 as a merger of Kanda and Kōjimachi wards following Tokyo City's transformation into Tokyo Metropolis. The modern Chiyoda ward exhibits contrasting Shitamachi and Yamanote geographical and cultural division. The Kanda area is in the core of Shitamachi, the original commercial center of Edo-Tokyo. On the other hand, the western part of the Kōjimachi area typically represents a Yamanote district. Chiyoda consists of the Imperial Palace and a surrounding radius of about a kilometer. As of June 2020, the ward has an estimated population of 66,575, and a population density of 5,709 people per km², making it by far the least populated of the special wards. The total area is 11.66 km², of which the Imperial Palace, Hibiya Park, National Museum of Modern Art, and Yasukuni Shrine take up approximately 2.6 km², or 22% of the total area. Chiyoda is an economical powerhouse, the small area East of the palace in the districts of Otemachi, Marunouchi and Yurakucho (colloquially "Daimaruyu") houses the headquarters of 19 Fortune 500 companies, is the source of roughly 10% of the combined revenue of all Japanese companies and produced in 2017 the equivalent of around 1/4th of the GDP of the country. With a day population of around 850,000, its day/night population ratio is by very far the highest of all municipalities in Japan. Chiyoda is also the political center of the country, Chiyoda, literally meaning "field of a thousand generations", inherited the name from the Chiyoda Castle (the other name for Edo Castle, today's Imperial Palace). With the seat of the Emperor in the Imperial Palace at the ward's center, many government institutions, such as the National Diet, the Prime Minister's Official Residence, the Supreme Court, ministries, and agencies are also located in Chiyoda, as are Tokyo landmarks such as Tokyo Station, Yasukuni Shrine and the Budokan. The neighborhood Akihabara is also located in Chiyoda, as are twenty embassies and consulates.

The Imperial Palace East Gardens is a historical garden in The Imperial Palace in Tokyo. The gardens however, were first in use by the Tokugawa shogunate. There is a bridge which leads to Sakashita-mon gate nearby is the Imperial Household Agency building and Tokyo Imperial Palace (or "kyuden") The garden was built on the grounds of Edo Castle. The Ote-mon Gate functioned as the main gate of Edo Castle. It was used by the feudal lords who came to stay in the castle under the alternating attendance system of the Tokugawa shogunate, as such it was a very important gate. All the gardens areas were used as defence. They are translated as “inner circle of defense” (honmaru), “second circle of defense” (ninomaru), and “third circle of defense” (sannomaru). Suwa-no-cha-ya, was built by Emperor Meiji in 1912 and is a tea house. Emperor Meiji also lived in the Nishinomaru palace near the gardens, he lived at the Nishinomaru from 1869-73.

The Graduate School of International Corporate Strategy (大学院 国際企業戦略研究科, Daigakuin Kokusai Kigyō Senryaku Kenkyūka), also known as Hitotsubashi ICS, is the graduate business school of Hitotsubashi University in Tokyo, Japan. Hitotsubashi ICS was the first "professional graduate school" (formerly "specialized graduate school") established in Japan. The school was founded by Harvard Business School professor Hirotaka Takeuchi, its first dean, in 1998, and admitted students in 2000. ICS is housed in the National Center of Sciences and located at Chiyoda Campus, the birthplace of Hitotsubashi University, Chiyoda, Tokyo.

The National Institute of Informatics (国立情報学研究所, Kokuritsu Jōhōgaku Kenkyūjo, NII) is a Japanese research institute located in Chiyoda, Tokyo, Japan. NII was established in April 2000 for the purpose of advancing the study of informatics. This institute also works on creating systems to facilitate the spread of scientific information to the general public. It oversees and maintains a large, searchable information database on a variety of scientific and non-scientific topics called Webcat. NII is the only comprehensive research institute in informatics in Japan. It is a major part of the Graduate University for Advanced Studies, SOKENDAI, and since 2002 has offered a Ph.D. program in informatics.

The judo competition at the 1964 Summer Olympics was the first time the sport was included in the Summer Olympic Games. Medals were awarded in 4 classes, and competition was restricted to men only. The competition was held in the Nippon Budokan, which was built to host the competition.

Nippon Budokan (日本武道館, Nippon Budōkan), often shortened to simply Budokan, is an indoor arena located in Chiyoda, Tokyo, Japan. Originally built for the inaugural Olympic judo competition in the 1964 Summer Olympics, its name translates as Martial Arts Hall in English. While its primary purpose is to host martial arts contests, the arena has gained additional fame as one of the world's most iconic musical performance venues. Budokan was a popular venue for Japanese professional wrestling for a time, and it has hosted numerous other sporting events such as the 1967 Women's Volleyball World Championship. Most recently, the arena hosted the Olympic debut of karate in the 2020 Summer Olympics as well as the judo competition at both the 2020 Summer Olympics and the 2020 Summer Paralympics. A number of famous rock music acts have played at Budokan. The Beatles were the first rock group to play there in a series of concerts held between June 30 and July 2, 1966. ABBA ended their last tour there. Their final show on March 27, 1980, was the last live concert ABBA performed together. Numerous acts have recorded live albums at Budokan, including Blur, Bryan Adams, Bob Dylan, Eric Clapton, Cheap Trick, Dream Theater, Duran Duran, Kiss, Europe, Mr. Big, Ozzy Osbourne, Judas Priest, Paul McCartney, Ringo Starr, Journey, Deep Purple and Pink Floyd.