Atlas Obscura is organizing trips! Join us on an adventure »
Today Only: 50% off Atlas Obscura books and calendars at Barnes & Noble »

Saint-Georges-des-Sept-Voies, France

Helice Terrestre Trogolodyte Tunnels

Beautiful carved tunnels. 

Artist Jacques Warminski worked for five years to create the spectaular underground environment of Helice Terrestre. The carved caves are specially designed to allow light in to correspond to astrological and seasonal alignments.