Lingotto, Former factory in Italy
Lingotto was once the largest car factory belonging to Fiat.
Construction of the Lingotto building concluded in 1923.
Its rooftop test track featured in the film 'The Italian Job'.
Now it's a multi-purpose center with shopping mall, hotel and art gallery.
Lingotto is renowned for its helical ramps and rooftop racetrack.
Location: Turin
Source: Wikimedia