Some while ago I went underground to photograph a metro tunnel, I should say tunnels. This is an Urbex location somewhere in Belgium. It is quit big I must say. I have made a selection of some tunnels.
1.
(http://www.lacourphotos.com/UrbanExploring/Underground/Pre-Metro/i-zG3T5mW/0/L/Pano_02_1-L.jpg)
2.
(http://www.lacourphotos.com/UrbanExploring/Underground/Pre-Metro/i-mjD3r42/0/L/Pano_06_1-L.jpg)
3.
(http://www.lacourphotos.com/UrbanExploring/Underground/Pre-Metro/i-QTmF9Sc/0/L/IMG_8149_50_51_tonemapped-L.jpg)