Roppongi Hills Mori Tower (六本木ヒルズ森タワー Roppongi Hiruzu Mori Tawā?) is a 54-storey mixed-use skyscraper located in Roppongi, Minato, Tokyo. Completed in 2003 and named for builder Minoru Mori, the tower is the centerpiece of the Roppongi Hills urban development. It is currently the fifth-tallest building in Tokyo at 238 meters (781 ft). The building is primarily used for office space, but it also includes retail stores, restaurants and other tourist attractions. The Mori Art Museum is located on the 53rd floor and visitors can view the city from observation decks on the 52nd and 54th floors. The headquarters of Mori Building Company are located in this building.
The tower has been at the centre of several scandals. One of the building's tenants, livedoor, was raided by police. In 2004, a six-year-old boy was killed in one of the building's revolving doors. After a police investigation, three men were convicted of professional negligence that resulted in the boy's death. Later, an elevator fire in the building prompted nation-wide elevator inspections.
Mori Tower is a mixed-use facility that is used for retail and office space. The tower's first six floors house retail stores and restaurants.