Uros Islands, Peru

At an altitude of 12,500 feet, Lake Titicaca is the world’s highest navigable body of water. It’s also home to the Uros Islands – manmade islands that float on the lake. There are roughly 120 islands that are home to about 1,200 people.

The islands are crafted from dried reeds, woven together and layered. As the bottom layers dissolve in the water, fresh layers are added. They also construct boats and buildings from the abundant reeds.

Walking on the islands takes some getting used to—the ground shifts and sways. But the people are friendly and happy to lend a steadying hand.