I think this is my favorite museum of all time. Not only is it amazing to see such a complete collection of Van Gogh's works in one place, but the Van Gogh Museum does a great job of telling the story that accompanies the different phases of Van Gogh's work, ending in his suicide.
The museum leads you around a maze chronologically. By the end, I was pretty wrapped up in the story and the progression (and then degression) that you could see in his paintings.
When his skills started to diminish and his madness became to great, there's a chilling quote from him that goes something like this "I know I am a failure and I have left nothing." If Van Gogh could only know the impact he had...