Interesting side quests (Fallout 4)

Friends, we all know that games like Fallout 4, interested not so much in the main plot, how much exploration and side quests, but so many of them and not all of them are really worthy of attention, and time is the most valuable resource.

Therefore, I suggest to share in comments to this post information about interesting quests, which have you found to others in the first place keep them, and not exchanged for a faceless job (which is what must be confessed, very much).

Specify, please:
— The name of the quest
And PS (or other conditions) where to get the quest. Ideally, a screenshot of the map, with a designated place.
— A very brief description of why the quest is worth (without spoilers)

Also welcome screenshots of interesting finds (funny scene of the mannequins, corpses in unusual positions and much more in Fallout 4 the environment itself tells the story).