The architecture with wrought-iron balconies and the cobblestone street are very characteristic of Portugal. The sign on the scaffolding uses Portuguese words like "Reabilitação" and "Construção," and the ".pt" web address confirms the country. The phone number area code 21 is specific to the Lisbon region. The narrow, hilly street layout is typical of the historic districts in Lisbon. I am very sure this is in Lisbon, Portugal.

then: guess