The Utrillo-Valadon Museum, created in 1995 is the only museum in the
world devoted to the painter Maurice Utrillo.
It was during the time spent in the hospital of Dr Revertégat in 1912, 1913 and 1914 that Maurice Utrillo discovered Sannois village.
He painted over 150 works there, several of which belong to his greatest artistic period, known as "the white period". The 18th-century windmill overlooking Sannois has been painted many times by Mauric Utrillo. It is among the best preserved in France. Nearby, is the 'Maison du Meunier' built in the 19th century.