The Ford Piquette Avenue plant in Detroit may be the most significant auto-heritage site in the world. In 1904 the Ford Motor Company built the Piquette plant as its first factory building. Here is where Henry Ford and his team built the first 12,000 Model Ts and many subsequent models. The Ford Piquette Avenue plant is on the National Register of Historic Places. It is a State of Michigan Historic Site and a City of Detroit Historic District. The plant offers tours for the public.