there's a whole nother world underneath the streets of london. sometimes you catch a glimpse of it in every day life. the occasional open door at a train station revealing hidden passageways or funny funnel shaped buildings in random parts of the town acting as air vents for underground activities.

this evening i saw an open manhole cover with a little railing round it. i learnt over and took this photo down the hole. i zoomed in 3x and it still looked a long way down !

you can't quite see because of the scale of the photo, but just above the water level is a passeway leading left to right across the picture where the workman had obviously gone down.

i did think about going down and having a look, but wasn't sure if that was a great idea.