Cheomseongdae obervatory

Cheomseongdae (첨성대) observatory is the oldest astronomical observatory in the orient. It was made in 8th century.  It is located in the flat land. and the corner of it is  pointing tombs of it constructor. 

Ther are secret of numbers:

• 364.5 
• 12 
• 12 + 12 = 24 
• 27 = 12 + 12 + 3 

:)