Question: In what city ar Cadillac Tower and Renaissance Center located?

Context paragraphs:
Cadillac Tower: The Cadillac Tower is a 40-story, 133.4 m Neo-Gothic skyscraper designed by the architectural firm of Bonnah & Chaffee at 65 Cadillac Square in Downtown Detroit, Michigan, not far from Renaissance Center.  The building's materials include terra cotta and brick.  It was built in 1927 as Barlum Tower.  At the top of the tower is a tall guyed mast for local radio stations WMXD, WDTW-FM and television station WLPC-CD.  It was listed on the National Register of Historic Places in 2005.

Renaissance Center station: Renaissance Center station is a Detroit People Mover station in Downtown Detroit, Michigan.  It is located at the northeast corner of the Renaissance Center complex (whence the station takes its name), connected to Tower 200 (Northwest) at Level 2 alongside Jefferson Avenue.  As it serves RenCen, the station serves the Marriott Hotel, General Motors headquarters, the Riverfront and the Wintergarden shopping center.  In 2014, this stop was the second most heavily trafficked (behind only Greektown) with 487,758 riders.

Renaissance Center: The Renaissance Center (also known as the GM Renaissance Center and nicknamed the RenCen) is a group of seven interconnected skyscrapers in Downtown Detroit, Michigan, United States.  Located on the International Riverfront, the Renaissance Center complex is owned by General Motors as its world headquarters.  The central tower, the Detroit Marriott at the Renaissance Center, is the second tallest all-hotel skyscraper in the Western Hemisphere.  It has been the tallest building in Michigan since it was erected in 1977.

First National Building: The First National Building is a skyscraper and class-A office center in Downtown Detroit, Michigan, within the Detroit Financial District.  The building is located across the streets from Cadillac Tower and One Detroit Center, and stands next to the Vinton Building.

Philip A. Hart Plaza: Philip A. Hart Plaza in downtown Detroit, is a city plaza along the Detroit River.  It is located more or less on the site at which Antoine Laumet de La Mothe, sieur de Cadillac landed in 1701 when he founded "Fort Pontchartrain du Détroit", the settlement that became Detroit.  In 2011, the Detroit-Wayne County Port Authority opened its new cruise ship passenger terminal and dock at Hart Plaza, adjacent to the Renaissance Center, which receives major cruise ships such as the MS "Hamburg" and the "Yorktown".

One Detroit Center: Ally Detroit Center (Formerly One Detroit Center) is a skyscraper and class-A office building located downtown which overlooks the Detroit Financial District.  Rising 619 feet (189 m), the 43-story tower is the tallest office building in Michigan, and the second tallest building overall in the state behind the central hotel tower of the Renaissance Center, located a few blocks away.  Although the Penobscot Building has more floors above ground (45), those of Ally Detroit Center are taller, with its roof sitting roughly 60 ft taller than that of the Penobscot.  Its floor area is 1674708 sqft .

WDTW-FM: WDTW-FM (106.7 FM, "106.7 The D") is a radio station licensed to Detroit, Michigan; broadcasting a rock-leaning adult hits format.  The station is owned by IHeartMedia, Inc..  In addition to a standard analog transmission, WDTW-FM broadcasts over HD Radio and is available online via iHeartRadio; the HD2 digital subchannel airs alternative rock via the Premium Choice network as "The Alternative Project."  WDTW-FM studios are located in the Detroit suburb of Farmington Hills, while the station transmitter resides atop Cadillac Tower in Downtown Detroit.

Cadillac Square Building: The Cadillac Square Building (also known as the Real Estate Exchange Building) was a building located at 17 Cadillac Square in Detroit, Michigan.  It was constructed in 1918, and opened in 1919.  It stood at 20 floors, with two basement floors, for a total of 22 stories.  The high-rise was designed by architect Louis Kamper in the Neo-Gothic architectural style and shared similar characteristics and proportioning to the neighboring Cadillac Tower.  The high-rise was built on the former site of a Salvation Army Hall, and was demolished in 1976.  A parking lot took its place.

Blue Cross Blue Shield of Michigan Building: The Blue Cross Blue Shield of Michigan Building is a skyscraper located at 600 East Lafayette Boulevard in Downtown Detroit, Michigan, near the Renaissance Center complex.  It is also known as the Blue Cross Blue Shield Service Center.  It was constructed in 1971, and stands at 22 floors.  The building was constructed in a sunken plaza.  It houses Blue Cross Blue Shield of Michigan.  The campus in downtown Detroit also includes offices for 3,000 employees at Towers 500 and 600 of the Renaissance Center linked by the Detroit People Mover.

Cadillac Centre: Cadillac Centre was a proposed contemporary complex to be constructed in downtown Detroit, Michigan on the Monroe block of Campus Martius.  In January 2008, the city announced that the complex was approved for construction with groundbreaking planned for September 2009, but the project was placed on hold indefinitely due to an economic recession.  Expected to cost $150-million, the mixed-use development called for two 24-story towers to rise from a 12-story base which would connect to the 40-story Cadillac Tower.  The upscale residential high-rise was slated to include a retail and entertainment complex.  The architect was Anthony Caradonna, an associate professor with Pratt Institute School of Architecture in New York City and a principal with the AC/2 Studio firm, whose recent projects have included the Hotel Duomo in Molfetta, Italy and the Bar Solex in New York City.

Supporting paragraphs: Cadillac Tower Renaissance Center
Answer: Detroit, Michigan