A colonial racist collectible stamp reading: 'In our colonies' is displayed at an exhibition of antisemitic and racist stickers at the Deutsches Historisches Museum, German Historic Museum, in Berlin, Germany, Tuesday, April 19, 2016. One of Germany's main history museums is exhibiting racist and anti-Semitic stickers spanning more than a century, a show that comes as the country worries about racism amid the migrant crisis. (AP Photo/Markus Schreiber)