Earth’s  Most Unexplained Discoveries Ever!

1: Antikythera Mechanism

 

Have you ever seen machinery dating back to about 100 BC? Nope I guess, but it is true. An intricate machine was found in a shipwreck near Greece that is equipped with gears and structures. It is believed the ancient machine was made to figure our astronomical positions.

2: Baghdad Batteries

 

Do you know the Baghdadis had electricity generation technique hundreds of years before the normal batteries were invented? It is surprising, but true. Initially the structure was thought to be normal vases, but later it was discovered to have housed copper rod that shows evidence of acid corrosion. Did they really generate electricity?

3: Tunnels During Stone Age

 

These tunnels are very extensive and the real purpose is still unknown. It dates back to the Stone Age.

4: Costa Rica’s Stone Balls

 

Hundreds of stone balls are discovered in Costa Rica and these ranges between the sizes of 3 cm and 3 metres. All are perfectly spherical and no one knows what were the purposes of these balls.

Complete article can be found here