I'm not a huge gamer. I don't use my iPhone for games usually, but this time, I did an exception.
On many sites and blogs I read about a game called "Monument Valley" and, at the first glance, I felt interest in the app because of the aesthetics, the graphic design, the colors: you know it seemed cool. Well in my opinion, after playing for a few days, I think that this app is not only a game but a little piece of art. I'm not exaggerating.
You don't need a long description to understand and appreciate this game. Just press download on your iPhone, enjoy and (please) do not rush to finish it right away.