Scenery reaches new heights on the Top of the Rockies byway in Colorado — Mount Elbert and Mount Massive are the tallest and second tallest peaks in the state. Follow the beginnings of the Arkansas River, and be sure to stop by one of the many lakes in the area, explore forest land and spend some time on Leadville's Main Street. At an altitude of 10,152 feet, Leadville is the highest incorporated city in the United States.

Built on the shoulders of the silver boom, a number of historic structures are still peppered throughout its quaint downtown. The town is surrounded by five peaks that tower more than 14,000 feet: Mount Elbert, Mount Massive, Mount Democrat, Mount Sherman and Mount Bross. From Leadville, you have a choice — head south, then west to Aspen or take the northeastern route over Fremont Pass to Copper Mountain.

Upon reaching Aspen, arrange for extra time to explore this alpine gem. Though it's primarily known as a winter destination — home to four world-class ski destinations — it's also a cultural mecca for art, music and fashion.