ryanpanos:

Rooftop Racetrack: 1928 via Retronaut
&ldquo;The Lingotto building,&nbsp;Turin, Italy, once housed a &nbsp;Fiat&nbsp;factory. Built between 1916 and 1923, the design had five floors, raw materials going in at the ground floor, and cars built on a line that went up through the building. Finished cars emerged at rooftop level, where there was a rooftop test track. It was the largest car factory in the world at the time. Le Corbusier called it &ldquo;one of the most impressive sights in industry&rdquo;, and &ldquo;a guideline for town planning&rdquo;.&rdquo;