A girl performs yoga on the occasion of fifth International Yoga Day, and she stand on the rocky crest filled with astronomical markers at the megalithic observatory Kokino, on June 21, 2019 – the day of the Summer solstice. The ancient astronomic observatory, located about 100 km northeast of Skopje, North Macedonia, dates more than 4.000 years back in time. It is ranked by NASA as the fourth ancient observatory in the world.
Robert ATANASOVSKI / AFP