Sitting on the edge of the world's largest salt flats, at 3656m above sea level, the unique Luna Salada hotel has been constructed entirely of salt blocks. Deluxe rooms feature polished wood floors, locally woven fabrics and colourful artwork. They come with sweeping views of the mountains or salt lake, though some of the standard rooms have more limited views. The public areas of the hotel, including the cosy lounge, even feature crunchy salt crystals underfoot. Days can be spent enjoying a private guided tour of the spectacular Salar de Uyuni or hopping on a bike to explore the area at your own pace.