GM Renaissance Center — This complex of seven skyscrapers quickly became the dominant landmark on Detroit’s skyline when it was built in 1977. The central tower is home to the Detroit Marriott and at 727 feet; it is the tallest building in the state of Michigan. The Renaissance Center is also the corporate headquarters of General Motors. Designed by famed architect John Portman, this skyscraper complex definitely ranks as one of Detroit’s most popular landmarks.