Although some of the limitations of the Grand Canyon Caverns land it a little below some of the best Route 66 attractions, it's definitely worth a stop if you're taking a road trip along the Route.

Grand Canyon Caverns is about 123 miles from Grand Canyon National Park's South Rim, according to Google Maps. Details: 115 Route 66, Peach Springs. 928-422-3223, gccaverns.com.

The Grand Canyon Caverns Suite is described by the attraction's staff as the world's deepest, darkest and quietest hotel room. It overlooks the Chapel of the Ages, a vast cavern room whose colors ...

Located more than 200 feet below the surface near Peach Springs, the Grand Canyon Caverns and Inn offers visitors a rare underground experience filled with natural wonders and unique history.