The World Tree of Hope
Every December, thousands of origami cranes adorn a large, 20-25 foot Christmas tree in the Rotunda of San Francisco City Hall inscribed with well wishes for the future. The holiday project that began in 2006 has since evolved into a global symbol of unity and hope for a better world. It is organized by the Rainbow World Fund (RWF), the only international humanitarian aid organization that is based in the lesbian, gay, bisexual, transgender (LGBT) community.
(via My Modern Met)