article_snippet: The urban spelunker said that Death favorite type of shot is where trains create a blur of light as they go past empty stations like the one above .
article_snippet: The photographer  said that fear of the subway's scarier side is 'only mental'. '
article_snippet: The senses are always raised; listening for trains, inhaling the scents of the city, the brain works fast and unimpeded,' The photographer shared on Instagram.
article_snippet: The photographer bravery, including many shots looking down the barrel of tunnels from which trains will shortly emerge.
article_snippet: Catching blurs of light from passing trains is The photographer favorite type of shot.
highlights_snippet: Photographer and Instagram star says that fear is 'only mental'  despite dangers of passing trains .
  
highlights_snippet: Gregory Berg says catching blurs from passing trains is Gregory Berg favorite type of shot .