BBC News

World leaders light candles for Holocaust victims. 00:00:50, play videoWorld leaders light candles for Holocaust victims

Video inside Auschwitz after liberation. 00:00:38, play videoVideo inside Auschwitz after liberation

Survivors visit 'death wall' where thousands were shot. 00:00:39, play videoSurvivors visit 'death wall' where thousands were shot

Remembering is a 'vital task', King says. 00:01:31, play videoRemembering is a 'vital task', King says

Survivor recounts moments before being taken to Auschwitz. 00:01:19, play videoSurvivor recounts moments before being taken to Auschwitz

The last time I saw my parents before they were murdered. 00:01:38, play videoThe last time I saw my parents before they were murdered

'Some young people haven't heard about gas chambers' 00:01:29, play video'Some young people haven't heard about gas chambers'

Heads of state gather at Auschwitz memorial in Poland. 00:00:26, play videoHeads of state gather at Auschwitz memorial in Poland

Bringing my great-grandma's Holocaust story to TikTok. 00:01:40, play videoBringing my great-grandma's Holocaust story to TikTok

'I lied to the Angel of Death to save my life' 00:01:10, play video'I lied to the Angel of Death to save my life'

'We are the guardians of memory' - Polish president. 00:01:17, play video'We are the guardians of memory' - Polish president

'We're the last generation to hear their stories' 00:00:36, play video'We're the last generation to hear their stories'

'I know what happens when a despot takes over' 00:01:16, play video'I know what happens when a despot takes over'

The British-born victims of Nazi eugenics. 00:01:33, play videoThe British-born victims of Nazi eugenics