Guillaume Prugniel is a French photographer based in Berlin, Germany.

Prugniel takes nighttime photos of abandoned places, such as bunkers, radar stations, and greenhouses, in France, Germany, and Belgium.

Using colorful lights, Prugniel brings these buildings back to life, and the effect is mesmerizing. Under the cover of night,

French photographer Guillaume Prugniel will visit abandoned and vacant places. Using colorful lights and a little help from friends,

Prugniel brings life and color back into buildings that have fallen into rot and decay.

               The result: Prugniel's photos show a new side to buildings people rarely visit anymore.

               Insider spoke to Prugniel about the process of finding and photographing the buildings, and what he hopes people see in his images.