1. Trail Ridge Road, Rocky Mountain National Park
Rocky Mountain National Park is a great place to visit. If you want a true alpine experience above treeline, take the drive along trail ridge road. Enjoy alpine wildflowers, unique rock formations and stunning views of Longs Peak and the Continental Divide. All of this can be had from pull-offs along the road. Keep in mind, there is a National Park fee and this place can get crowded on summer weekends.