High Quality Content by WIKIPEDIA articles! 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 tallest all-hotel skyscraper in the Western Hemisphere, and features the largest rooftop restaurant, Coach Insignia. It has been the tallest building in Michigan since its erection in 1977.