Today marks Eid al-Adha, or the Sacrifice Feast, one of Islam's most important festivals. /Xinhua Photo

People visited a livestock market in Istanbul, Turkey, on August 30, 2017, to get prepared for the festival. /Xinhua Photo

It is a time when Muslims slaughter goats, cows or other domestic animals to share with the family. /Xinhua Photo

Devotees also attend prayers, visit relatives and friends, and send best wishes. /Xinhua Photo