Illusion
This is pretty cool, from the outside of the house it would seem like this family cut a hole in their roof so they could stick a tree inside. But in real life, they just bought a very tall tree and needed to find a way to get the most out of it.
So instead of cutting a hole in the roof, they cut the tree in half and put one part on the roof outside. They placed it in the perfect position so that it lines up with the other part of the living room to get this effect. Now that’s pretty creative.