A lot of the examples below are foyers, but entryways often pose similar design conundrums as halls, and similar solutions.
via Pic toViral
Our hallway is narrower than this one, no kidding. Wainscoting and a lovely collection of framed art give this hallway a studied feel.
via Fresh Designpedia
If you have enough width in your hall to allow it, built-ins or shelves are a great way to display more than art or serve as additional storage.
Traditional and pretty.