A child descends the ancient brick staircase into the underground crypt of Saints Sergius and Bacchus Church (Abu Serga) in Coptic Cairo, Mar Girgis district. The crypt is venerated as the site where the Holy Family rested during their flight into Egypt, making it one of the most sacred Christian sites in the country. The carved wooden iconostasis frame and aged stone walls reflect the church's early Byzantine architectural heritage, dating back to the 4th–5th century AD.