Attack on Titan

The entire storyline is constantly expanding with unexpected twists and turns. Seeing where the show started and where it ends up, you wouldn't even believe it's the same storyline. There are hundreds of hints and forshadowing that let you discover hidden things about characters and civilization before it is ever said. Everything is so fleshed out too. It is an intense, soul crushing, inspirational, fantastic show with some of the best animated moments with dynamic camera shots, dynamic movement, amazing fight choreography and beautifully written characters. This is my favorite show of all time, each time I rewatch it I learn something new, hidden in the storyline. Couldn't recommend enough.