It is situated near to the French quarter of Montmartre in the red-light district of Paris called Pigalle on Boulevard de Clichy in the 18th arrondissement . It can be recognized by the large red windmill it has on its roof . Close to Montmartre in the Paris red-light district of Pigalle on Boulevard de Clichy in the 18th arrondissement , it is marked by the red windmill on its roof .