The ancient Umayyad Mosque of Aleppo, Syria, was once ranked among the most beautiful mosques in the world.
Now in ruins, it was destroyed by a war that not resulted in the killings of generations of Syrians but also history.
The minaret of Aleppo's Great Mosque was unusual - unlike traditional cylindrical minarets, it was square in cross-section.
At 45m high, its pinkish-beige stone, wrapped in intricate Arabic inscriptions, stood out on the city's skyline.
The courtyard of this famous mosque is now filled with bricks and rubbish while its walls are blackened.
“This is like blowing up the Taj Mahal or destroying the Acropolis in Athens. This mosque is a living sanctuary,” Helga Seeden told Daily Mail. He is a professor of archaeology at the American University of Beirut.
“This is a disaster. In terms of heritage, this is the worst I've seen in Syria. I'm horrified,” he said.
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