Your comment about a terrorist map is a great teaser...I would love to know more about such a map...do you have a link to it?
http://conservativetribune.com/european-country-islamic-migrants/
I forget where I first saw it. This one is similar. Thanks for asking, I should have searched for a link to add to my post.
Here’s 2 more.
https://www.reddit.com/r/europe/comments/4brazv/map_of_terrorist_attacks_in_europe_after_911/
https://www.washingtonpost.com/graphics/world/a-history-of-terrorism-in-europe/
The second is the WaComPost, so can’t be accused of conservative bias.