Among Sisley 's best-known works are Street in Moret and Sand Heaps , and The Bridge at Moret-sur-Loing shown at MusÃ e d'Orsay , Paris . Among Sisley 's best-known works are Street in Moret and Sand Heaps , both owned by the Art Institute of Chicago , and The Bridge at Moret-sur-Loing shown at MusÃ e d'Orsay , Paris .