Montmartre is Paris' most unique of arrondissements, thanks to hilly setting around the Sacré Coeur and its history in music and the arts.
The 18ème is famous for its Place du Tertre which is always busy with budding painters.
Its narrow streets lead up to the Sacré Coeur cathedral at its crest, with grassy parks overlooking Paris and the best view of Paris is yours for free from the top of the hill (if there's no haze).
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From swampy to swanky, the Marais is the oldes part of Paris.
It's well known for its many restaurants and more recently for its fashion and design shops.
Le Marais is also a trendy district in Paris celebrated for its nightlife and it contains a large portion of the gay population of Paris.
In this historical area of Paris there are many museums within walking distance: Musée Picasso, Musée Cognac-Jay, Musée Carnavalet, Jewish Museum, the Archives Nationales and the Bibliothèque Historique de Paris.
You could easily spend your entire visit to Paris in this neighborhood, there is that much to do.
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The Opéra district was once the "hub" of Paris society; the Grands Boulevards were the place to see and be seen: in the cafés, at the opera, or in the ornate passages couverts, the glass-roofed arcades that were the world's first shopping malls.
Today, its elegant surroundings are still very evident and the Grands Boulevards remain the city's shopping epicenter, home to the most popular department stores, Galeries Lafayette and Au Printemps, near Place de l'Opéra at the heart of the long chain of avenues.
The Louvre is the very centre of Paris and boasts many of the city's tourist hot-spots and cafés.
Everybody knows the Louvre Museum, home to the famous Mona Lisa, or the L'Orangerie, with Monet's Waterlilies paintings.
The beautiful Tuileries Gardens nearby are a perfect place to relax.
Notable Louvre bridges are Pont Neuf, the oldest in Paris, and Pont des Arts. The latter is popular for picnics or a romantic evening watching the boats glide along the Seine.
Here it is, the Champs-Élysées, the city's - if not the world's - most famous avenue, bustling and tree-lined with stores and restaurants.
It leads up to the Arc de Triomphe, the sparkling scene here at night serves Paris' reputation as the City of Light.
The area has a classy Parisian vibe. Nearby Parc de Monceau and several palaces offer sublime spots for a rest or check out Quartier Monceau's flower market.
Another world famous attraction: the Eiffel Tower. Just as fantastic to view from the top, the tower makes a lovely backdrop by the Trocadero. At this stretch of fountains with grassy slopes, enjoy the picture-postcard view and maybe a spot of lunch.
Regarded by many as the most beautiful museum of Paris (and the world), Musée d'Orsay is located here in the 7ème, with one of the most astounding collections of impressionist art to be seen. Degas, Lautrec and Van Gogh feature, to name a few.
Tour Eiffel district is an international, classy neighbrouhood.
La Défense is Europe's largest purpose-built business district and a must-see lists for its modern architecture and public art.
Highlights on the surface nearby include the monumental Grande Arche, skyscrapers that host the headquarters of important French and foreign companies.
Not far away and in between La Défense and Paris is Neuilly Sur Seine, the chic suburb.
Attached is also Bois de Boulogne and it is 2.5 times larger than Central Park in New York, and 3.3 times larger than Hyde Park in London.