VIENNA, Austria (AFP) — In a Vienna museum, Nazi-era art crams two small rooms, some still in storage boxes. A painting of Vienna’s opera features Nazi flags, a swastika is woven into a tapestry. The pieces are part of an exhibit in the Austrian capital aiming to shed light on the politics of art under the Third Reich — one of the latest ways in which Vienna is seeking to address its complicated war-era past. Austria, the birthplace of Adolf Hitler, long cast itself as a victim after being annexed by Nazi Germany. Only in the past three decades has...