Whilst doing some urban exploration a few weeks ago I stumbled upon an abandoned military outpost on the outskirts of central Taipei.
Apart from being the usual time capsule (ammo boxes; bits of uniform - hats etc),
I found a hatch which was rusted shut and seemed not to have been opened for years.
After opening the hatch and fighting off sinister cobwebs with a stick, I dropped down through the hatch onto some steps into what I thought was a cellar.
However, it was something far more unusual: an expanse of forgotten tunnels.
These tunnels go on for ages and still haven't been fully explored by myself. They go deep under streets and seem to go, from what I can work out, under a "famous" night market in Taipei. There are a few Japanese inscriptions on the walls written in chalk, plus some interesting artifacts.
I don't particularly want to inform people of the location on a forum as it is a good secret. This is something interesting and forgotten to society and should be left that way.
However, I did take a few pictures. Here's a couple: