Did u know that the Mona Lisa has no eyebrows ? Yeah, its hard to believe. A Parisian engineer Mr. Pascal Cotte dedicated 3,000 hours to examining Leonardo Da Vinci’s famous portrait Mona lisa & then he says that Mona Lisa once had both eyebrows and eyelashes, but that these have been gradually eroded to the point that they are no longer visible. The engineer examining the portrait of Mona lisa using 24- megapixel scans. There are conflicting theories that Leonardo did indeed paint the Mona Lisa with eyebrows, but that they have eroded with time or been erased by poor attempts to clean the painting.