

Puno, Peru
Covering an area of over 8000 square km across the countries of Bolivia and Peru, lies Lake Titicaca. At 3800 meters above sea level, it is the world's highest navigable lake. And by 'navigable', I mean only big commercial boats - there are actually other bodies of water that are situated higher than Titicaca but none large enough for big boats to access. 60% of the lake lies on the Peruvian side of the border while the rest lies on the Bolivian si...