If you'd like to visit a lot of monuments and museum in a limited time, it is cheaper to buy a Paris Visite card.
With Paris Visite card you could use public transport without limits, you could use metro underground, bus, rer and rail towards EuroDisneyland. You haven't other tickets to buy.
There are 3 types of tickets and costs:
ZONE 1-3: Paris center and first periphery
ZONE 1-5: Ok for Ile-de-France, Versailles, Charles de Gaulle, Orly, Disneyland
ZONE 1-8: towards Fontainbleau e a Provins
Cost of ticket, in euro, for 3 zones:
1 DAY 8,35 16,75 23,60
2 DAY 13,70 26,65 34,30
3 DAY 18,25 37,35 42,65
5 DAY 26,65 45,70 53,35
Card includes these visits:
Cité des Sciences et de l'Industrie
Les Étoiles du Rex
Galeries Lafayette
Montmartrain
Musée Grévin
Musée du Vieux Montmartre
Opéra Garnier
Musée Jacquemart André
Musée du Vin
Stade de France
Tour Montparnasse
