A rare canvas by French artist Paul Gauguin from his time in Tahiti fetched €9.5 million (US$10.5 million) in Paris on Tuesday, nearly twice its estimated value, the auction house said.

After examining the French artist Paul Gauguin’s The Little Cat with X-ray imaging, experts at the Van Gogh Museum in Amsterdam are unraveling the painting’s secrets—including a hidden beetle.

An exhibition at the city’s Museum of Fine Arts provides an illuminating view of the painter’s long, restless career, ...