The incredible thousand-year-old UNDERGROUND 18-storey city that could house 20,000 people and was discovered by chance when a man was doing DIY on his house in Turkey

In 1963, a Turkish man in the region of Cappadocia was making improvements to his home when he made an incredible discovery. After knocking down a wall in his basement, he stumbled upon a secret room, which led to an underground tunnel, which opened up into a completely hidden ancient city: Derinkuyu.

Photos of the preserved city reveal how 20,000 people - including livestock and entire food supplies - could have lived 18 storeys beneath the earth.

Thought to have been created during the Byzantine era in 780-1180AD, the network of kitchens, stables, churches, tombs, wells, communal rooms and schools was most likely used as a massive bunker to protect inhabitants from the Arab–Byzantine wars or natural disasters. During this time, cave-like chapels and Greek inscriptions were added to the ancient city, and about 600 entrances allowed people to come and go.

Lots of photos at link:  http://www.dailymail.co.uk/news/article-4032200/Photos-underground-18-storey-city-Turkey-reveal-hidden-rooms-house-20-000-people.html#ixzz4SpZbkEfC

If I'd found that in my cellar I'd have kept quiet. My own personal city

If you find greek inscriptions i would say the underground city would have been inspired by intelligent design for future concepts of living, which would also give cover from outside forces by default but not only for that purpose.

If you look at most or all of the planets in our solar system you will find it difficult to find any surface structures, of the few found you can see they are long eroded perhaps being millions of years old. Subterranean living is the most intelligent standard of living on so many levels and of all the planets out there i can assure you the ones that are inhabited have subterranean living infrastructure.

We are just now looking at doing this here on a global scale. In 2022 to 2023 you will see a huge number of projects come into the commercial mainstream due to new " Airlite " technology being developed as we speak. This is a surface membrane ( either painted or glass fused ) onto the ceiling of an underground dwelling or structure, it will have the look of hexagonal plates fitted together. The membrane once connected to electrical energy give off similar if not exact same properties of the sun and will look like a sort of pale yellow sky during the day and when power is off it turns a purple blue colour. Once you are inside you will not be able to tell that you are underground, it will have the look and feel of the surface but with the security and climate of being in a subterranean habitat.

The health benefits of this are many as radiation and communicative devices will revert to analog technology within the membrane. all electricity for machinery will run without wired connections. All atmosphere will be regulated by
" organic " android based tech systems. Air is brought in through ducts located in heavily forested areas, exhausts out into constructed water streams, the water is piped in through rocks for heating or cooling then filtered and returned to the surface. The only machinery allowed will be electrically driven.

Eventually the surface areas will be reclaimed for the benefit of natural water, animal livestock and vegetation sustainability.

Project should finish by 2066 ish give or take. The goal is to return the planet to sustainability.

Hmmm - You have a "Globalist" Air to Your Posting...

Sustainability is great but not at the expense of Our personal Freedoms and Liberties...

I thought of it as more other-worldly Mercurial.