Azizam Jawaid Saheb,
That is nostalgic! You took me to the 1970s. The most interesting and amusing book is still popular: CHARIOTS OF THE GODS by Erich Von Daniken. I read the small book three times in 10 years, 5 times in 20 years. To me it sounded convincing after the first reading.
Daniken proves his observations with photographs although he may not reach the right conclusions every time. Well, I still love to visit the fairy-land sometimes :-)