The Galeries Lafayette are a must for any foreign visitor in Paris, both for its architecture as well as its prestigious shops.
Two cousins, Théophile Bader and Alphonse Kahn, built Les Galeries Lafayette in 1893 at the corner of Rue La Fayette and Rue de la Chaussee d' Antin. The construction of the impressive cupola was carried out by Ferdinand Chanut and the structure was completed in 1912.
The neo-Byzantine dome, measuring over 33 meters in height, is an amazing work of colored glass held together by a metal skeleton. There is a terrace on the 7th floor which offers some of the best views of Paris; and, best of all, they're free (a rarity in Paris).