This tunnel is the perfect example of the well crafted architecture..
It was found in Turkey and was made more than hundreds of year ago in 700 to 800 BC.
It is earthquake resistant. Has 600 entry gate is spread in 4 km radius.
As per Turkish department of Culture around this tunnel is made on the place where soft rock was formed due to volcano and that’s why probably this place was selected to make this tunnel.
It was created by people to save themselves from the torture of the king.
It had a Prayer room, cemetery, bathroom and things required to have a peaceful living.