The museum was conceived by the Empress Farah Diba Pahlavi, wife of Shah Mohammed Reza Pahlavi, and opened to international acclaim in 1977. Just 15 months later, in the face of a massive popular uprising, the couple left the country on what was officially called a “vacation.” The revolution replaced the monarchy with an Islamic Republic weeks later. The new regime could have sold or destroyed the Western art masterpieces. Instead, the museum was closed, its treasures hidden in a concrete basement, and the shah’s palaces were preserved and eventually turned into museums. For years, the art collection, bought for less than $100 million dollars, was protected but unseen; by some estimates, it is now worth as much as $3 billion. – The New York Times