A photo from the 'By the Silent Line' series of La Petite Ceinture, an old Parisian railway. (Pierre Folk)

Chemin de fer de Petite Ceinture(French for "little belt railway") was a Parisian railway that pre-dated Paris’ Metro and connected the City of Light’s five main lines. Today, the railway, which stopped serving commuters in 1934, sits derelict and overrun with various flora and fauna.

Photographer Pierre Folk captured eerie images of old train route for his photo series entitled, “By the Silent Line,” documenting the old tracks of La Petite Ceinture through the seasons.

Folk shot the series on film, using a large format camera. He visited the area at different times of year in order to convey the passage of time.

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“As a photographer I’ve always been willing to explore the relations between society and its environment, the way we leave things behind,"Folk said in an interview with weather.com. "La Petite Ceinture being mostly idle, maintained for a purpose yet to be agreed on, I figured it could suit my point and decided to build the series."

While some of the tracks remain unused, other parts of the line have been repurposed. The station at Charonne-Voyageurs is now a popular music café called the Fleche d’Or and in 2008, the section between Porte d’Auteuil and the Gare de la Muette was opened to pedestrians as part of a nature trail, according to Atlas Obscura.

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While Folk was shooting the series he encountered an old man named Daniel who had been living on the line for 15 years.

“Meeting him was one of my most refreshing experiences on the line. I went back several times to say hello and he always had lots of stories to tell.”

To see more of Folk’s work visit his website.