If you want to know Paris better, I suggest you take the ground public transportation. Even after many years of living in Paris, the best way to move around the city and sightseeing the town is by bus transportation. For example:

Bus line 69 will take you to Champs Mars (Eiffel tower), Gambetta (Cemetery Père Lachaise) going trough Invalides, Louvre museum, Town Hall, Chatelet and Bastille, Saint Germain, Saint Paul Church and Voltaire.

Bus line 42 will take you to André parc Citroën, Champs Mars (Eiffel Tower), Avenue Montaigne, Champs Elysées, Concorde, Madeleine, Opéra, and Gallerie Lafayette.

Bus line 72 will take you to Town Hall, Louvre museum, Royal palace, Alma Bridge, Trocadero, and Radio France.

Bus Montmartre will take you from Pigalle to 18th district Town hall (where you can really shop till you drop). This bus will also take you to the Basilique du Sacré-Coeur passing through the Moulin Rouge, Rue Lepic, Place des Abbesses, full of restaurants and night clubs.

On the buses you can buy one way tickets but in metro stations you can buy any type of tickets using the automatic distributers. Found out the Paris' bus map .

Be careful: Metro line 6 will not stop at the following metro stops from June 30th to September 5th: Place d’Italie, Nationale, Chevaleret, Quai de la Gare and Bercy. Please, use the Paris' bus map to find other ways to get there. I suggest you to buy one of these daily tickets during your stay in Paris.

All that’s left for me to do so is to say: HAVE A GOOD TRIP!

Bed & Breakfast Paris: the B&B Paris' Network for your weekend and stays in Paris.