The Imagine Peace Tower was officially unveiled in Reykjavik, Iceland, on October 9, 2007, by Yoko Ono. If still alive, John Lennon would have turned 67 years old on the day of its unveiling. The tower is made using a single beam of light emitted into the night sky from its wishing well base. The tower is illuminated annually from October 9 to December 8, the anniversary of Lennon's death.