Why are there giant concrete tunnels in the desert?

Gravity?  not more like magnetic fields or angels  or magnetic resonance. Land is flat not moving. Water dome as above  so below  fact  (people ) ?men and women are waking up to the bull and lies of the corporation's  and governments  wake up  wake up...............................wake the UK up ad see in front of  U look  up look down but never round  water finding it's  level