Observatories that I have visited:
Antequera solar calendar
The Antequera solar Observatory
On a vacation 2016 when we traveled by bus in south Spain we came to Antequera,
there was an park with megalith tombs, but also an astronomical calendar, a solar observatory.
The entrance to the megalith tomb park, this was our main goal to visit Antequera.
Beside the megalith tombs was this little park. We didn't see what it was in the beginning.
A closer look and we understand, a solar calendar. Not as famous as Stonehenge but still very exiting for us.
On the left there was a profile of the horizon and the summer, spring/autumn and winter solstice marked along the line.
Summer solstice, ORTO 21 JUNIO to read.
A solar clock need sunshine to work, today it was broken!
With this device it was possibly to see which Month, but must be read when the sun is at it's highest point of the day.
June, April, March, February, January and December