Here’s a compact 5-day Lisbon plan with a simple daily budget estimate. I’ve included an interactive chart for the budget split.

## 5-day Lisbon itinerary

### Day 1 — Baixa, Chiado, Alfama
- Arrive and settle in
- Walk Praça do Comércio and Rua Augusta
- Explore Chiado cafés and shops
- Ride Tram 28 or walk into Alfama
- Sunset at Miradouro de Santa Luzia
- Dinner with fado in Alfama

### Day 2 — Belém
- Visit Jerónimos Monastery
- See Belém Tower and Monument to the Discoveries
- Try pastéis de nata at Pastéis de Belém
- Stroll the waterfront
- Optional: MAAT or Coach Museum

### Day 3 — Sintra day trip
- Morning train to Sintra
- Visit Pena Palace
- Explore Sintra historic center
- Optional: Quinta da Regaleira
- Return to Lisbon for a relaxed dinner

## Estimated daily budget

Assumes a mid-range traveler using public transport and 1–2 paid attractions on most days.

```a2ui
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{"version":"v0.9","updateDataModel":{"surfaceId":"lisbon-trip-budget","path":"/","value":{"chart":[{"day":"Day 1","food":45,"transport":10,"activities":25},{"day":"Day 2","food":40,"transport":12,"activities":35},{"day":"Day 3","food":35,"transport":18,"activities":55},{"day":"Day 4","food":45,"transport":10,"activities":30},{"day":"Day 5","food":35,"transport":8,"activities":15}]}}}
{"version":"v0.9","updateComponents":{"surfaceId":"lisbon-trip-budget","components":[{"id":"root","component":"Column","gap":3,"children":["chart"]},{"id":"chart","component":"Chart","chartType":"bar","data":{"path":"/chart"},"xKey":"day","series":[{"key":"food","label":"Food","color":"#f59e0b"},{"key":"transport","label":"Transport","color":"#3b82f6"},{"key":"activities","label":"Activities","color":"#10b981"}],"stacked":true,"height":320,"showLegend":true,"showGrid":true,"showTooltip":true,"format":"currency","currency":"EUR","title":"Estimated daily budget split"}]}}
```

## Approximate totals
- **Day 1:** €80
- **Day 2:** €87
- **Day 3:** €108
- **Day 4:** €85
- **Day 5:** €58

**Trip total:** **€418**

If you want, I can also turn this into:
- a **cheaper backpacker version**
- a **luxury version**
- or a **map-based itinerary by neighborhood**
