This week, we take you to Iran to see one of the most important contemporary art collections outside Europe and the United States. Since the Islamic Revolution of 1979, these paintings have been kept hidden in the basement of the Museum of Contemporary Art. They include works by Gauguin and Warhol which were originally acquired by the country's last empress, Farah Diba. Now some of the collection has been put on display. Our correspondent in Tehran went to take a look.
But first, the war of words between Turkey's president and European leaders is heating up. As Turkey's April 16 referendum draws closer, Recep Tayyip Erdogan has been taking aim at European leaders for blocking political rallies on the continent.
And with Palmyra back in the hands of the Syrian regime, we look at how the historic city has been destroyed by the Islamic State group for the second time. Many relics are missing and in some cases have been sold on the black market.