The main tourist attraction in the Alésia district can be found about 65 feet underground. This is the Paris Catacombs located by Place Denfert-Rochereau.
Another interesting feature of Alésia is its architectural diversity: Haussmann-style buildings, single-family residences, post-war architecture, plaster facades, etc.
The district also has a large number of artists' workshops. The famous painter Édouard Manet even depicted Alésia in his 1870 painting Effet de neige à Petit-Montrouge (Effect of Snow on Petit-Montrouge).