When it comes to town planning on a grand scale there is little to rival the area west of St-Germain-des-Prés, stretching from the 7e into the 16e arrondissement across the river. The sweeping vista from the terrace of the Palais de Chaillot on place du Trocadéro across the river to the Eiffel Tower and École Militaire, no doubt familiar to many visitors from countless images and photos, is truly impressive. Equally magnificent is the view from the ornate Pont Alexandre III along the grassy Esplanade to the colossus that is the Hôtel des Invalides . The 7e arrondissement is home to the Assemblée Nationale and has the greatest concentration of ministries, embassies and official residences in Paris. The area's main art gallery, the Musée d'Orsay , is also housed in an impressive and unusual building, a cavernous, decommissioned railway station.