Witch doctors and druids gathered around the world in groups to celebrate the summer solstice and winter solstice on June 21, Tuesday.

Today, June 21, marks the summer solstice, the day with the longest period of daylight, for the Northern hemisphere. This happens when the sun is at its most northern position, hence making it the shortest day (or the winter solstice) for people in the Southern hemisphere.

Solstice takes place either of the two times a year when the sun is at its greatest distance from the celestial equator. On about June 21, when the sun reaches its northernmost point on the celestial sphere, or about December 22, when it reaches its southernmost point.

Around 30,000 neo-pagan groups, dressed as witch doctors and druids, gathered at monumental places such as Stonehenge for celebration.

Check out the photos below taken from round the world of pagans celebrating summer and winter solstice.