This district owes its name to its famous and influential church of St. Thomas d'Acquin (late eighteenth century). This district is still a space of rare magnetism since it concentrates many places of political and cultural power (most ministries, the museum of Orsay, etc.). Side seine and quoted city, it offers to its inhabitants a rare diversity of signs. Antique dealers and art galleries have meshed the territory while rue du Bac offers a rare selection of shops and deluxe shops. By walking a little closer to Sèvres-Babylone, you can even get lost at the Bon Marché, the most beautiful store in Paris.