WOW!! Where is THAT?? We travel a lot and I have never of this place!
Ossuary building containing the bones of 130,000 unidentified soldiers killed in the battle.
https://www.google.com/search?q=douaumont+ossuary&rlz=1CAXGER_enUS827&sxsrf=ACYBGNRcCSPQ5R_g1xsX7reXiUqZCxp39w:1571263047169&tbm=isch&source=iu&ictx=1&fir=hs3_GAkCzBu9zM%253A%252CZmaYb18tMZmRvM%252C_&vet=1&usg=AI4_-kQbgWGKFvIJc_mwC732U8DDzGVebg&sa=X&ved=2ahUKEwiYuZn-4qHlAhXilOAKHZr0DBsQ9QEwAXoECAYQKA#imgrc=5wqV_vt7vYY1CM:&vet=1
Verdun, France.