The expedition leader said that the discovery should “give historians fresh insight into where the wall was [first] built”.

Imprinted with the image of a man who appears to have been crucified, the shroud has been dated to the end of the 13th century.

Although the exhibition is geared towards a scholarly crowd, the co-curator Pietro Marani says that organisers have made it accessible to wider audiences.

At the weekend, five teenagers were arrested over an alleged plot to carry out an attack at a World War One centenary event.

"We predict that this year will be an SUV feeding frenzy," said Ola Kallenius, head of marketing for Mercedes Benz.

Last week, around 400 migrants were reported to have died attempting to reach Italy from Libya when their boat capsized.

Footage shows one group of men being beheaded on a beach and another group being shot in the head in a desert.

"The massacre of the Armenian, Assyrian and other Christian people should be called what it is: genocide," Senator Ted Cruz said.

Khamenei, the highest authority in Iran, has supported the nuclear talks but continues to express deep mistrust of the United States.

The initiative “100th Year – Stop Denialism” was established to commemorate the Genocide on April 24, in Istanbul and Diyarbakır.