Celebrants gather at Stonehenge on June 20 to watch the sunset on the eve of the summer solstice.
The June solstice marks the longest day of the year in the Northern Hemisphere and the shortest day of the year in the Southern Hemisphere. It has long been an important religious, cultural, and agricultural marker for people around the world. (Related: "Summer Solstice 2013: Why It's the First Day of Summer.")
—Jane J. Lee
Photograph by Kerim Okten, European Pressphoto Agency
The fourth oldest observatory in the world, Kokino is 3,800 years old and was formed from cooled lava flows.
Photograph by Ognen Teofilovski, Reuters
An Aymara woman in La Paz, Bolivia (map) holds an offering of flowers and a llama fetus during winter solstice celebrations on June 20. The Aymara are an indigenous group that live in the central Andes, which stretch across Peru and Bolivia.
Photograph by David Mercado, Reuters
Amidst the frenetic energy that is Times Square in New York City, a group of people calmly take part in yoga practice on June 21, the morning of the summer solstice.
Photograph by Eric Thayer, Reuters
Night Lights For Solstice
A boy plays with a glow stick during summer solstice celebrations on June 14 in Busbach, Germany (map). The festival, also known as St. John’s Fire or Kanz Fire, has roots in a pagan ritual celebrating the longest day of the year.
Photograph by David Ebener, Picture-Alliance/DPA/AP
Here Comes the Sun
A group of people gathers to celebrate the summer solstice and watch the sunrise from atop Kopiec Mound on June 21 near Crakow, Poland (map).
Photograph by Jakub Ociepa, Agencja Gazeta/Reuters
Just Another Day
High above Times Square in New York City, a window washer gets to work on June 21, the morning of the summer solstice.