Catacombs built during the persecution of Christians of the Roman Empire of Syracuse, Neapolis Archaeological Park, Syracuse, Sicily, Italy

Memorial to children of Lidice sent to concentration camps after their village was destroyed by Nazis during WWII in revenge for the Czech Resistance assassination of the Nazi Governor of occupied Czechia Reinhard Heydrich, Lidice, Central Bohemia, Czech Republic, Europe

Memorial at Majdanek Concentration Camp, Poland

Cambodia tuol sleng museum and former prison and torture chambers of the khmer rouge. phnom penh. photographs of victims imprisoned, tortured and killed at the prison

Cambodia the killing fields national memorial, phnom penh. skulls of victims killed by khmer rouge

Geoffroys marmoset. Callithrix geoffroyi. captive adults. Newquay zoo Cornwall UK. More info: status: least concern but numbers declining due to habitat destruction, pet trade, zoos, biomedical research and persecution.

Holcaust monument at dawn Berlin Germany

Cement squares, steles of the Holocaust Memorial, Mitte district, Berlin, Germany, Europe

Kart racing, karting, racetrack, auto racing, speed, competition, Garching, Hochbrueck, Munich, Bavaria, Germany, Europe

Kart racing, karting, racetrack, auto racing, speed, competition, Garching, Hochbrueck, Munich, Bavaria, Germany, Europe

Kart racing, karting, racetrack, auto racing, speed, competition, Garching, Hochbrueck, Munich, Bavaria, Germany, Europe

Wall with index cards of Nazi persecution, Documentation Centre, Topography of Terror, Berlin, Germany, Europe

The Train of Memory, mobile exhibition of Deportation, Grevenbroich Railway Station, Grevenbroich, North Rhine-Westphalia, Germany, Europe

The Train of Memory, mobile exhibition of Deportation, Grevenbroich Railway Station, Grevenbroich, North Rhine-Westphalia, Germany, Europe

Holcaust monument at dawn Berlin Germany

Bunch of roses on one of the concrete blocks of the Holocaust Memorial in Berlin, Germany, Europe

Holocaust memorial in Berlin, Germany

The Old Synagogue (O-Szinagoga) with pictures of victims of the persecution of Jews. Sopron in Transdanubia in the west of Hungary close to the border with Austria. Europe, Eastern Europe, Hungary

The Old Synagogue (O-Szinagoga) with pictures of victims of the persecution of Jews. Sopron in Transdanubia in the west of Hungary close to the border with Austria. Europe, Eastern Europe, Hungary