Sun Valley, Idaho is in the midst of a lodging renaissance at the moment, with plans and construction for new hotels popping up nearly every month. But nothing is bigger than what's happening at the iconic Sun Valley Lodge. Originally constructed in 1936, the Sun Valley Lodge has long been a playground for the rich and famous (maybe it's the hot tub). But the resort is taking the luxury up a notch with refurbished guest rooms and a brand new 20,000 square foot spa that's set to open June 15. The Spa at Sun Valley will offer 15 treatment rooms, a fitness center and yoga studio, and blissful-sounding services like the White Cloud Massage and Full-Body Sugar Scrub. Looks like we need to update our list of the best spas in ski country.