Yellowstone National Park is a vast 2.2 million acre landscape, and planning a visit can make even the most seasoned traveler think 'It's how big?' and 'Wow, I'll never see it all!'.
To be frank, the latter is true; You will not see it all, especially in one trip. But, while no where close to everything Yellowstone has to offer, the following seven areas (ordered clockwise around the Grand Loop Loop road, beginning at Old Faithful) will give you a good overview and likely a taste to begin planning another adventure.