I had no idea there was a tunnel in a place like this!!

I had no idea there was a tunnel in a place like this!!

As someone who's crazy about tunnels I've no choice but to go inside!

As someone who's crazy about tunnels I've no choice but to go inside!

I've discovered a mysterious door at the end. I'm a little scared, my heart's pounding...

Here goes nothing!!

It was a public toilet...