The pride of Napoleon’s victories, the Arc de Triomphe, whose first stone was laid in 1806 at the top of the Champs-Élysées, is, along with the Eiffel Tower, one of…

For more than a decade, Reichsmarschall Hermann Goering, Adolf Hitler’s right-hand man during the infamous Third Reich, assembled a collection of thousands of works of art that were meticulously catalogued.