In historic instances, the capability to predict an eclipse or the trade of seasons turned into the precinct of a priest elegance - these people had electricity and status and so wanted monuments and fantastic works to show to the people that they were critical human beings to be feared and respected. https://www.assignmentsquare.co.uk/

Good link.

http://www.google.com/search?q=calar+alto+observatory&tbm=isch&source=hp&sa=X&ved=2ahUKEwjKhoHRrMHgAhURBHwKHX0RD

A nice view of the moon on the direct link, especially on 1x view size http://150.214.222.102/view/viewer_index.shtml?id=36

Another nice moonlit view.

Supermoon plus Gemenid meteor shower equals some good astronomy (weather permitting) http://earthsky.org/tonight

This would be a good place to observe the Perseids http://www.skyandtelescope.com/astronomy-news/bumper-crop-of-perseid-meteors/

Pretty view right now.