- World renowned explorer George Kourounis, 44, has become first person to descend Turkmenistan's 'Door to Hell'
- The gas crater has burned at temperatures of 1,000C since Soviet engineers set it on fire in 1971
- Spectacular photos show him abseiling into the fire pit wearing a heat resistant suit and breathing apparatus
By COREY CHARLTON FOR MAILONLINE
PUBLISHED: 10:14 GMT, 6 May 2015 | UPDATED: 23:19 GMT, 6 May 2015
