In May 2014, Lee Thompson, founder of the adventure travel company The Flash Pack, persuaded the Brazilian tourism board to let him climb the city's world-famous Christ the Redeemer statue.
The resulting pictures, 124 feet up, were featured on Thompson's travel blog in a post called "Christ, this is one EPIC selfie!"
Thousands of "urban explorers" or "roofers" across the world have taken to scaling skyscrapers, cranes and bridges to capture the perfect shot. But the pastime comes with great risks. Find out more on CBSN: On Assignment.