The Witcher 3 has a Game of Thrones Easter Egg
The Witcher 3 thinks it knows what happens to Tyrion Lannister at the end of Game of Thrones.
Among The Witcher 3's many Easter Eggs is the body of Tyrion Lannister, laid out in an open-walled cell similar to one he inhabited earlier in the fantasy saga. Maybe CD Projekt RED expects to see everyone's favourite Lannister back at the Eyrie in the future.
PC Gamer has more details on the Easter Egg, including a map and description of the area if you'd like to see it for yourself.
Have you found anything interesting or amusing on your adventures? I think one of my favourite things about The Witcher 3 isn't hidden as such - it's just the little snippets of extra dialogue slotted in all over the place to no purpose. Like the loan shark who tells you his father brought him in to pawn and never came back. Did you hear Geralt and Yennefer's pun competition during Nameless?