A Czech cyclist on Sunday night completed a 620-mile journey in honor of International Holocaust Remembrance Day, which will be marked on Jan. 27.

Identified as Lukáš Klement by Israel’s Government Press Office, the Czech national said that he began his route from the “Gate of Death” at the Auschwitz concentration camp in Poland, where the Nazis in World War II exterminated about 1.1 million inmates, the majority of whom were Jews.

Klement’s route spelled out “Never Again” when depicted on a map.