Ancient Alien tunnel system leading underground

Ancient tunnel system only big enough for little elves, dwarves, kobolds, faeries, djinn, greys, elementals.

http://ancient-origins.net/news-history-archaeology/extensive-ancient-underground-network-discovered-scotland-turkey-00540

From Scotland to Turkey.

I personally heard them opening stone cave doors with cavernous echoes under the ancient bronze age site in West Lothian Scotland called Cairnpapple hill.

There were two other witnesses present when the hill shook and the sound of underground stone doors grating open were heard circa 2000.

Like the systematic tunnels and caverns under Edinburgh, Scotlands capital, this network made by non-humans was not for the benefit or access of mankind.