For travelers that enjoy the unique and different, finding a truly adventure-worthy hotel may seem like searching for the proverbial needle in a haystack, but from transparent rooms that hang on the edge of a sheer rock space overlooking Peru’s Sacred Valley to glass igloos in Finland and rooms built around a bullfighting ring in a Mexican metropolis, at least one of these ingenious options are sure to fit the bill. Nature Vive Skylodge, Sacred Valley, Peru via naturavive.com 1. Natura Vive Skylodge, Sacred Valley, Peru ( prices & photos ) Welcome to Natura Vive Skylodge, offering some of the most jaw-dropping views on earth from what may be the most terrifyingly thrilling hotel rooms ever constructed. Adrenaline-seekers can sleep in the transparent glass pods that cling to one of the highest peaks in Peru’s Sacred Valley. If you’re brave enough to endure a night, you’ll soak up majestic views across the heartland of the Inca Empire, with a package that includes breakfas...