Salar de Uyuni

The world's largest salt flat—10,582 square kilometers of blinding white crust in southwestern Bolivia—Salar de Uyuni is the most Instagrammable natural phenomenon on the planet. During the wet season (December-April), a thin layer of water transforms it into the world's largest natural mirror, reflecting the sky so perfectly that the horizon line disappears, and 80% of posted photos gain over 1,000 likes. The forced-perspective photography opportunities are endless, outperforming #3 Zhangjiajie's glass bridge by offering an affordable, open-access canvas for creativity.