Syrians made peace signs, waved flags and danced at a rally in central Aleppo to celebrate the end of the Assad regime.
Mass rallies are taking place across the country to mark the end of five decades of authoritarian rule, after former President Bashar al-Assad fled to Russia.
Aleppo witnessed, and was ravaged by, intense fighting between the opposition and government forces during the civil war.
Earlier this month it became the first major city to be captured by Islamist-led rebels.