Yesterday, I got a nice surprise of a late Christmas present from a friend. A fabulous book:
A fine collection of images from underground London; sewers, rivers, railway lines past present and future, abandoned stations, and other ancillary tunnels and underground workings, such a fascinating read, you can buy it from Amazon.com really worth a look. Makes me want to have more underground adventures.
Image of the Day
Back in 2010 while visiting the Blue Mountains, NSW Australia, we took time to visit the many caves and tunnels in the Jenolan Caves system. These are really worth a visit, set aside a whole day to do them justice.
Click the image for a larger view.