Corridors under the city of Zlín. The corridors are long and lead to the bunker...

The Libor tunnel is more than 1km long in the longest corridor with several side...

used the power of water to drive the saw and cut the logs into planks,...

This place surprised me quite a bit I didn't know about it on the net...

I was here today, but only the second floor is interesting, and it's all sunken...