Vienna’s celebrated Belvedere Museum has taken down five paintings by Gustav Klimt after receiving an anonymous threat from an individual who threatened to destroy them. “Sources in the gallery said the mail had threatened the paintings would be destroyed to stop them being restored to heiress Maria Altmann, niece of their orginal Jewish owner who was driven out of Vienna and stripped of his possessions by the Nazis in 1938.” The Belvedere had agreed to return the paintings earlier in the week.