The world’s largest salt flat, known as Salar de Uyuni, is located in Bolivia. Covering over 10,000 square kilometers (4,000 square miles), it was formed from ancient lakes that evaporated, leaving behind a thick crust of salt. This stunning landscape attracts tourists for its unique beauty and reflective surface, especially during the rainy season when it creates an illusion of endless sky. It is also a crucial site for lithium extraction, vital for batteries and modern technology.