Throughout the globe, particularly in the Northern Hemisphere, people are celebrating the event of Summer Solstice the longest day of the year, which falls on June 21, 2011.

Also referred to as Midsummer, the event marks the time of the year when Earth is closest to the Sun's axis.  Every year, the event is celebrated with festivals, gatherings and rituals on the 21st of June in the Northern Hemisphere. However, the Southern Hemisphere observes Summer Solstice only in the month of December.

Different communities have their own way of celebrating the day. While some gather to welcome the sunrise early in the morning, some others assemble in groups to light a sacred fire. For thousands of years, this date has had spiritual implications for Christians, Celts and even the Pagans.

As per some Pagan beliefs, this point of the year marks the marriage of God and Goddess and a celebration of growth and life. Besides this, the Chinese also observes the day as the Festival of Li, the Goddess of Light.

Check out some of the unique images of Summer Solstice celebrations across the world: