Classified as a historic monument in 1911, restored from 1993 to 1995, the chapel has pinnacles where certain newly created chimeras resemble products of American film culture and Japanese animation.

The sacred origins of the place surround a spring, close to which the Druids held Beltane ceremonies in order to celebrate fertility.

The only sources available, a drawing and a note from the Archaeological Society of Loire-Atlantique, date from the nineteenth century and details are not allowed to be revealed.

The French architect, Gwénolé Congard, asked the sculptor Jean-Louis Boistel to recreate these pinnacles, including the 28 chimeras that adorn the corners.

Jean-Louis Boistel combines ideals of mythology, Christianity and also the modern era to recreate a coherent, iconographic program.