Angels descend from above
Or are they different entities?
What are they?
What technology did they bring?
What was built with the knowledge that was learnt?
What was learnt from above?
Where did they come from?
Who are they?
Nobody knows

What's built in the sea, and where did they go?
What is left of monuments to the gods?
Who are they?
What did they bring?
And what is still left to learn?
Knowledge can be learnt from the past
What can we learn from ancients? (Angels)
Left in the dark hidden behind the walls of ice
Watching from the shadows
Ancient Aliens
The Pyramids
Stonehenge