A man from Bristol has become the first person to run a marathon in every United Nations-recognised country in the world.
Nick Butter set off on his 196 marathon journey on January 6 2018, and finished his last 26.2 mile run in Athens yesterday (November 10).
His 22 month challenge was inspired by fellow runner Kevin Webber, who was diagnosed with prostate cancer in 2014.
Kevin joined Nick for his ultimate marathon in the Greek capital city.
The ultra-marathon-challenge has been used to raise money for Prostate Cancer UK.
So far he has raised more than £65,000 of his £250,000 target for Prostate Cancer UK.
Before flying back to the UK Butter told ITV: "I was very fortunate that the inspiration behind the journey, Kevin Webber, was there with me holding my hand as we crossed the finish line."
"When I set off for this challenge we really didn't think that he'd be with us by the time the trip finished and he made me the promise he was going to do everything he could to be there at the end."
Since starting out on his epic-marathon challenge, Nick has endured temperatures as low as -25C and as high as 50C.
He has ran more than 5135 miles across 675 days.