An outdoor concert venue
right outside of George, Washington
(yes, there really is a town called George, Washington), about halfway between Seattle
(for those geographically challenged, that places it in the north-center of the state, more or less).
Voted among musicians to be their favorite outdoor venue both because of the acoustic quality (which is amazing) and the beautiful scenery. The Dave Matthews Band unanimously voted it their favorite outdoor venue in the world, overcoming even Red Rocks.