If you’d like a professionally organised tour of Sofia, we recommend Sofia Free Tour. The free walking tour in English in the Bulgarian capital welcomes visitors every day at 10:00, 11:00 and 18:00 at the corner of the Palace of Justice (Court of Justice). The tour lasts approximately 2 hours. The sightseeing tours of Sofia are organised by guides from the non-profit organisation Association 365. Each tour is both entertaining and educational, the perfect introduction to the city and its millennia-old history.