A new YouGov/Economist poll reveals that over 20% of Americans aged 18-29 believe the Holocaust is a “myth” or “has been exaggerated.” An additional 30% report being ambivalent about whether the 20th-century genocide is a “myth”.

”Young people are nearly five times more likely to think this than those aged 65 and older (28% versus 6%),” The Economist reports.

The history-focused media platform History Hit lists 15 international Holocaust museums visitors can visit where documents, photographs, and videos of the genocide are on display for those who did not live during World War II and may have attended deficient history classes in K-12 or college.

Campus Reform Editor-in-Chief Zachary Marschall has written extensively for this publication about his grandfather’s survival of the Holocaust, specifically during Kristallnacht and in the Dachau concentration camp near Munich, Germany.