Old Faithful Inn is the most popular hotel in Yellowstone National Park. Not only is this log hotel a historic landmark, it's just steps from Old Faithful Geyser. But before you get entangled in turn-of-the-century romance and practical location take note of the following. The rustic charm of the lobby doesn't apply to the rooms. Most of guestrooms at this historic inn are located in a modern addition. The 'Old House' rooms - mid-range rooms and rooms without a bath - are truly basic. The high-range rooms are 3-star motel. You don't need to spend the night to take it all in. Family Travel Tips: Reservations are required at the Dinning Room. Old Faithful Inn is open early May though mid-October.