Adha, a period of "communal enjoyment" for Muslims worldwide, has officially arrived. Here's what we've learned about the Islamic holiday.

From prayers to grand feasts and vibrant streets, these photos show how Eid al-Adha unfolded with different tones and rituals across borders.

Under the damaged dome of al-Albani Mosque in Khan Younis, families stood on broken stone and dust, raising their voices in takbir, the declaration of god's greatness, to mark the first morning of Eid al-Adha on Friday.