In the southern part of the country are the extraordinary Uyuni Salt Flats and a vast wildlife sanctuary. We were lucky to visit when we did, as the flats were covered with a thin layer of water, creating in effect a vast mirror in which there was no horizon. One has the sensation of walking at the edge of the earth, or on the clouds….it is delightfully disorienting and spectacularly beautiful, especially at sunset. Taking the salt flat experience to the nth degree, we stayed in hotels built of blocks of salt.