Dubrovnik, Croatia The whole city is the most important tourist attraction in the country – it is in UNESCO’s list of World Heritage Sites. Among many narrow and precipitous alleys, Stradun is the main street, crossing through the old town.
Salar de Uyuni, Bolivia During the rainy season, the world’s largest salt flat becomes the world's largest mirror. The Salar was born when several prehistoric lakes joined into one. The salt flat is so reflective, it’s used to calibrate satellites.