14. Pagosa Hot Springs—Pagosa Springs, Colorado
The springs in Pagosa Springs, Colorado claim to house the world’s deepest geothermal hot springs, so earned by way of the Guinness Book of Records. The main source of water is so deep they can’t measure its full depth. The springs offer 23 pools to soak in, with a wide variety of heat options. Views are of the Rocky Mountains. The Springs resort and spa has every amenity one would expect in a high-end resort.
