This tunnel is famous for being the sight of horrific car crash and death of the late Princess Diana of Wales.
However, people have said that there ghosts there in the tunnel, like Diana is asking for someone to reveal the truth about her death. There is a "Flamme de la Liberté" memorial in the late princess' honor.
There, people still leave flowers, gifts, and poems, mourning this great woman. But is her spirit there, asking for help? Was her death an accident or murder? You will just have to decide for yourself.
For those who don't know or remember her, here is a link to her online biography and a clip from BBC News.