(CNN)Any doubts as to whether Alex Honnold was the greatest rock climber of all time were doused when the American did something that no one thought was humanly possible.
In June 2017, the 33-year-old became the first person to climb Californian granite monolith El Capitan without any ropes — a skill known as free soloing.
Situated in Yosemite National Park, USA, the gargantuan rock face soars 3,200 feet into the air, standing almost 500 feet taller than the Burj Khalifa — the world’s tallest building.
