Tokyo Skytree in the context of "Worm's-eye view"

A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures.

Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building.

Tokyo Tower (東京タワー, Tōkyō Tawā; pronounced [toːkʲoː taꜜɰᵝaː] ), a.k.a. Japan Radio Tower (日本電波塔, Nippon denpatō) is a communications and observation tower in the district of Shiba-koen in Minato, Tokyo, Japan, completed in 1958. At 332.9 m (1,092 ft), it was the tallest tower in Japan until the construction of Tokyo Skytree in 2012. It is a lattice tower inspired by the Eiffel Tower, and is painted white and international orange to comply with air safety regulations.

The tower's main sources of income are tourism and antenna leasing. FootTown, a four-story building directly under the tower, houses museums, restaurants, and shops. Departing from there, guests can visit two observation decks. The two-story Main Deck (formerly known as the Main Observatory) is at 150 m (490 ft), while the smaller Top Deck (formerly known as the "Special Observatory") reaches a height of 249.6 m (819 ft). The names were changed following renovation of the top deck in 2018. The tower is repainted every five years, taking a year to complete the process.

The tallest structure in the world is the Burj Khalifa skyscraper at 828 m (2,717 ft). Listed are guyed masts (such as telecommunication masts), self-supporting towers (such as the CN Tower), skyscrapers (such as the Willis Tower), oil platforms, electricity transmission towers, and bridge support towers. This list is organized by absolute height. See History of the world's tallest structures, Tallest structures by category, and List of tallest buildings for additional information about these types of structures.

Tokyo is the most populated of Japan's 47 prefectures. Mainland Tokyo is divided into two sections: Western Tokyo and the special wards of Tokyo. The prefecture's tallest structures are within the 23 special wards, which comprise the area formerly incorporated as Tokyo City. As of May 2025, there are over 200 structures in Tokyo that stand at least 150 metres (490 ft) tall, of which 49 are at least 200 metres (660 ft) tall, including those that are still under construction but have been topped out. Most of these structures are buildings; however, there are other types of structures among the tallest in the prefecture, such as freestanding towers and incineration smokestacks.

The tallest structure in the prefecture is Tokyo Skytree, a megatall lattice tower that rises 634 metres (2,080 feet), which was completed in 2012. It also stands as the tallest structure in Japan, the tallest tower in the world, and the third-tallest freestanding structure in the world. The second-tallest structure in Tokyo is the 333-metre-tall (1,093-foot) Tokyo Tower, a lattice tower completed in 1958. The tallest building and third-tallest overall structure is the 325-metre-tall (1,066-foot) Azabudai Hills Mori JP Tower, completed in 2023 and being Tokyo's only supertall skyscraper. It is also the tallest building in Japan and the world's largest skyscraper by floor area. The second-tallest building and fourth-tallest structure is the 284-metre-tall (932-foot) Nihonbashi 1-Chōme Central District Redevelopment (tentative name), which is topped out and scheduled for completion in 2026. Including topped-out buildings, Tokyo is home to 17 of the 25 tallest freestanding structures and 18 of the 25 tallest buildings in Japan.

The Canton Tower (Chinese: 广州塔), formally Guangzhou TV Astronomical and Sightseeing Tower (Chinese: 广州电视台天文及观光塔), is a 600 m (1,969 ft)-tall multipurpose observation tower in the Haizhu District of Guangzhou (alternatively romanized as Canton). The tower was topped out in 2009 and it became operational on 29 September 2010 in time for the 2010 Asian Games. The tower briefly held the title of tallest tower in the world, replacing the CN Tower, before being surpassed by the Tokyo Skytree. It was the tallest structure in China prior to the topping out of the Shanghai Tower on 3 August 2013, and is now the second-tallest tower and the fifth-tallest freestanding structure in the world.

The Tobu Railway Company, Ltd. (東武鉄道株式会社, Tōbu Tetsudō kabushiki gaisha) is a Japanese commuter railway and keiretsu holding company in the Greater Tokyo Area as well as an intercity and regional operator in the Kantō region. Excluding the Japan Railways Group companies, Tobu's 463.3 km (287.9 mi) rail system is the second longest in Japan after Kintetsu. It serves large portions of Saitama Prefecture, Gunma Prefecture and Tochigi Prefecture, as well as northern Tokyo and western Chiba Prefecture. The Tobu Railway Company is listed in the First Section of the Tokyo Stock Exchange and is a constituent of the Nikkei 225 index.

The Tobu corporate group is also engaged in road transportation (bus/taxi), real estate, and retail. It is the owner of the Tokyo Skytree, the third tallest tower in the world. The company is a member of the Fuyo Group keiretsu.

Tokyo Skytree Station (とうきょうスカイツリー駅, Tōkyō Sukaitsurī-eki; officially stylized as TOKYO SKYTREE Station) is a railway station on the Tobu Skytree Line in Sumida, Tokyo, Japan, operated by the private railway operator Tobu Railway. It is adjacent to the Tokyo Skytree and Skytree Town redevelopment, and was formerly known as Narihirabashi Station.

35°42′40″N 139°48′48″E / 35.7110°N 139.8133°E / 35.7110; 139.8133

Oshiage Station (押上駅, Oshiage-eki) is a railway station in Sumida, Tokyo, Japan, jointly operated by Tokyo Metro, Tobu Railway, Toei, and Keisei Electric Railway. It is adjacent to the Tokyo Skytree complex.