Question: What company started the urban complex development that included the highrise building, The Harmon?

Documents:
source: The Harmon
text: The Harmon The Harmon was a highrise building at the CityCenter development in Paradise, Nevada. The tower was designed by Foster + Partners as a non-gaming boutique hotel, and was to be operated by Andrew Sasson's The Light Group upon completion. The building featured an elliptical layout and highly reflective exterior located on the northeast corner of the project at the intersection of Las Vegas Boulevard and Harmon Avenue. Significant construction defects in the building were discovered in 2008, and the project was halted indefinitely. On August 23, 2013, a Clark County court approved the tower's demolition. The dismantling of the tower began in the summer of 2014 and completed in the fall of 2015.

source: CityCenter
text: CityCenter CityCenter (also known as CityCenter Las Vegas) is a 16797000 sqft mixed-use, urban complex on 76 acre located on the Las Vegas Strip in Paradise, Nevada. The project was started by MGM Resorts International; Dubai World became a joint partner during the project's construction phase. It is the largest privately funded construction project in the history of the United States. The project is connected by a people mover system to adjacent MGM properties Monte Carlo Las Vegas and Bellagio Las Vegas. As of 2015, the "CityCenter" branding has been largely retired, with the focus instead on the Aria brand of the development's centerpiece property in names such as the "Aria Express" (formerly "CityCenter Tram") and "Aria Art Collection" (formerly "CityCenter Art Collection").

source: Rotunda (Birmingham)
text: Rotunda (Birmingham) The Rotunda is a cylindrical highrise building in Birmingham, England. The Grade II listed building is 81 m tall and was completed in 1965. It was refurbished between 2004 and 2008 by Urban Splash with Glenn Howells who turned it into a residential building with serviced apartments on 19th and 20th floors. The building was officially reopened on 13 May 2008.

source: Wisma Nusantara
text: Wisma Nusantara Wisma Nusantara is an office highrise building located in Jalan M.H. Thamrin, Jakarta, Indonesia. Constructed in 1964, Wisma Nusantara is considered to be the first highrise in Indonesia and Southeast Asia to reach 100 metre height. The building complex included the Pullman Hotel.

source: List of tallest buildings in Indonesia
text: List of tallest buildings in Indonesia This list of tallest buildings in Indonesia ranks skyscrapers in Indonesia by height. Jakarta is the capital city of Indonesia. There are 88 Highrise building (150m+) have been built in Greater Jakarta and 26 more still under construction. Indonesia is ranked number 9th in the World by the number of 150m+ completed building and 5th in Asia. There are 4 Supertall building (300m+) that are still under construction. The average building age is 8 years. The first Highrise in Jakarta is Wisma 46 (262 m) and holds the 'unbeatable' record of the highest building in Jakarta for nearly 20 years

source: Three Nationwide Plaza
text: Three Nationwide Plaza Three Nationwide Plaza is a 408 ft(124m) postmodern highrise building located at the address 3 Nationwide Plaza in Downtown Columbus, Ohio. The building is part of the larger multi-building complex known as Nationwide Plaza. Nationwide Plaza is the headquarters of Nationwide Mutual Insurance Company. Three Nationwide Plaza is the 10th tallest building in Columbus. Construction on the building finished in December 1988. The architect responsible was the NBBJ Group and the building design follows a postmodern style. The building was constructed for approximately $89 million and the main materials used were glass, steel, and concrete.

source: Prestes Maia (building)
text: Prestes Maia (building) The Prestes Maia building, or sometimes simply Prestes Maia (] ), is believed to be the largest squatted highrise building in South America, with an estimated 2000 inhabitants. The complex is made up of two tower blocks, Bloco A and Bloco B, the latter of which has the address "Avenida Prestes Maia, 911" near Luz Station in downtown São Paulo. Businessman Jorge Nacle Hamuche purchased the building at auction in 1993 and co-owns it with his business partner, Eduardo Amorim. The building remains registered to the previous owner, the bankrupt National Cloth Company ("Companhia Nacional de Tecidos" in Portuguese), where Hamuche has been employed.

source: Lincoln Bank Tower
text: Lincoln Bank Tower The Lincoln Bank Tower in Fort Wayne, Indiana, United States, is an Art Deco highrise building. Construction started in late 1929 with the building's opening in 1930. For decades, it was the tallest building in the state. The building was also known as "Lincoln Bank Tower" to distinguish it from the building at 215 Berry Street, which had been known as the "Lincoln Life Building" from 1912 until 1923. Today, that other building is commonly known by the original Elektron Building name.

source: Kahramanlar Business Center
text: Kahramanlar Business Center Kahramanlar Business Center (Turkish: "Kahramanlar İş Merkezi"), originally known as Emek Business Center (Turkish: "Emek İşhanı"), is a 22 storey highrise building in Kızılay Square, Kızılay, Ankara, Turkey. Inspired by the Lever House building in New York City, it was designed in 1959 as one of the first International Style highrise buildings in Turkey. At the time of its completion in 1965, it was the tallest building in Ankara.

source: Five Penn Center
text: Five Penn Center Five Penn Center is a 36-story highrise in downtown Philadelphia, Pennsylvania. It is part of the Penn Center complex designed by Edmund Bacon. The building was one of the tallest in the city until the highrise building boom of the late 1980s and early 1990s and is connected via underground concourse to Suburban Station, as are all buildings in the complex.

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Answer: MGM Resorts International