While Lyon 's Beaux-Arts Museum -LRB- 20 , place des Terreaux , 33-4-72-10-17-40 ; 6 euros -RRB- is justifiably proud of its '' Ascension of Christ '' by Perugino , do n't miss the stairway murals by Pierre Puvis de Chavannes , a Lyon-born painter whose work foreshadowed symbolism .