根据给定的旅游目的地，创建一份旅行路线和日程表，包括每个目的地的建议停留时间和活动。


目的地: 巴黎、伦敦、罗马
Day 1-3: Paris
- Eiffel Tower (2 hours)
- Louvre Museum (4 hours)
- Notre-Dame Cathedral (1 hour)
- Montmartre (2 hours)

Day 4-6: London
- Tower of London (2 hours)
- British Museum (4 hours)
- London Eye (2 hours)
- Buckingham Palace (1 hour)
- Big Ben and Houses of Parliament (1 hour)

Day 7-9: Rome
- Colosseum (2 hours)
- Vatican City (4 hours)
- Pantheon (1 hour)
- Trevi Fountain (1 hour)
- Roman Forum (2 hours)

Note: This itinerary can be adjusted based on personal preferences and travel style.