Sunset at Montmajour

Van Gogh painted this, then basically shrugged at it. Not good enough. It sat rolled up in his brother's attic for years. Then it got worse. It got sold, called a fake, sold again, called a fake again. Twice rejected as an imitation by people who were supposed to know better. It took until 2013, more than a century later, for experts to actually prove what it was the whole time. Even van Gogh didn't know what he had...