Al Abbas Mosque

The Al-Abbas Shrine is the mausoleum of Abbas ibn Ali, situated near the Imam Husayn Shrine, located in Karbala, in the Karbala Governorate of Iraq. Abbas was a son of Ali, the half-brother of both Hasan and Husayn, Husayn's flag-bearer in the Battle of Karbala, and chief of his caravans. Along with the Imam Husayn Shrine, it is a profoundly holy site in Shia Islam. Each year, millions of people around the world observe Ashura during Muharram and later undertake the Arba'in pilgrimage to his shrine, the world's largest annual public gathering. Also known as Abu al-Fadl, Abbas was martyred while attempting to fetch water from the Euphrates river for the thirsty children. Over the centuries, the Euphrates changed course and it now flows around the Abbas Shrine. It is said that the Euphrates has come to Abbas now.

Mosque data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).