If your trip to Aspen is all locked in but your travel itinerary is a little on the empty side, let us give you a helping hand.Aspen Mountain deserves way more than just a quick drive-by. Step out of your car and spend some time discovering this landmark attraction while you're visiting Aspen.Buttermilk Mountain and Aspen Highlands are some fascinating attractions that everybody should make time to stop by. Map out your route and spend an hour or so soaking up each one.Stop by Maroon Bells. It's one sight you'll usually find on most travelers' must-do lists. If you still have some space on that travel itinerary, Aspen Skiing Company and Silver Queen Gondola will keep you busy as well.