1. Paris Landmarks. Right bank tour. Every day at 10:00 from Opera Garnier, about 90 minutes.
2. Montmartre. Every day at 11:00 from outside of Metro Blanche, about 90 minutes.
3. Trendy Marais. Every day at 14:30 from outside metro Saint-Sebastien-Froisard (8 line), about 90 minutes.
4. Notre Dame and the Heart of Paris. Every day at 13:00 from Notre Dame (by huge horse statue of Charlemagne), about an hour.
5. Left Bank. Latin Quarter. Every day at 14:30 from Notre Dame (in front of the middle door to the church), about 90 minutes.