Paris is a well-connected city, and its public transportation system is one of the most efficient in the world. The best way to get around the city is by using the Metro, which covers all areas and landmarks of Paris. A single ticket costs €1.90, while a pack of 10 tickets costs €16.90. Don't forget to take the RER trains to reach Versailles, which is located outside of Paris. The cost of a one-way ticket is €7.10, and the trip takes about 45 minutes.
If you have more time, add a visit to the charming Palais-Royal Courtyard, or explore the Père Lachaise Cemetery, where famous figures such as Edith Piaf and Oscar Wilde are buried. If you have less time, skip Moulin Rouge or the Palace of Versailles, and instead visit one of Paris's many beautiful parks or gardens, such as the Jardin des Tuileries. Be sure to try some traditional Parisian treats such as croissants, macarons, or crème brûlée.