Build one good day first
The useful plan is Alexander Nevsky and Serdika first, Vitosha Boulevard for the soft landing, Boyana or Vitosha as a separate block.
- Anchor the day around Alexander Nevsky Cathedral or Serdika Roman ruins.
- Keep Boyana Church for the right weather and timing.
The best things to do in Sofia are not just a list of names. They need order, weather sense, and a landing point. I would start with the anchor that defines the day, then add food, shopping, or a quieter area only when it helps the rhythm.
The practical rule is simple: Alexander Nevsky and Serdika first, Vitosha Boulevard for the soft landing, Boyana or Vitosha as a separate block. That keeps the day grounded instead of making it feel like a loose checklist.