Френският фотограф Жулиен Кнез попаднал на ретро снимки, направени в периода между 1871г. и 1968г. На тях може да се види как са изглеждали улиците и хората на Париж по онова време. След това Жулиен Кнез снимал същите места под същия ъгъл и комбинирал своите снимки с тях.
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