Don't want to hike to the top of a 14er, well you don't have to, you can drive to the top of Mt. Evans at 14,271 ft
One of more famous drives going through Rocky Mountain National Park.
The highest paved pass in the lower 48 states at 12,095ft in elevation. The pass is surrounded by beautiful views and sheer cliffs, so drive carefully, the road randomly turns into 1 lane.
The best way to see the San Juans, is on the Million Dollar Highway. You are surrounded by amazing mountains and sheer cliffs as well.