Fodor's Expert Review ION Adventure Hotel

Clean, green, and emerging from the landscape, the ION Hotel is a striking sight in the primordial surrounds of Nesjavellir, a geothermal area close to Þingvellir National Park. Although it's only 40 minutes away from Reykjavík by car, its location could easily pass for extraterrestrial. Apart from the luxury rooms fitted with mattresses made from organic material and Scandinavian-inspired decor, other highlights include a luxury spa with a large outdoor geothermal hot tub, and the Northern Lights Bar, where double-size windows offer guests unimpeded views of the auroras when they happen.