Discover first-hand accounts and original historic artifacts from the Archives of the American Field Service and AFS Intercultural Programs
You’ll likely want to skip to the sections: Last Post, Curriculum, & Stories from the Stacks.
Veterans History Project for interviews with people who were in Europe during the second world war and others who faced injustices during wartime.
The research guides https://www.loc.gov/programs/veterans-history-project/explore-the-collections/research-guides/ will help you navigate the collections.
HistoryMaps uses interactive maps as a timeline so that as you read (and scroll) you can visualize where events in time took place. There’s also a Timelines Game that you can play, and according to the creator of the website there are hidden features and puzzles for added fun.
Holocaust Survivor