Man visits ‘hell on Earth’ gold town in world’s highest city where ‘lawless’ mines are guarded by snipers

La Rinconada, a settlement over 5,000 meters high in the Peruvian Andes, is home to 50,000 people living in harsh conditions amidst a gold rush. Visitors describe extreme altitude sickness, pollution, crime, and dangerous mining practices, painting a stark picture of life in one of the world's most difficult places.