Aurora Borealis from the sea front. The blue light is The Imagine Peace Tower (Icelandic: Friðarsúlan, meaning "the peace column") which is a memorial to John Lennon from his widow, Yoko Ono, located on Viðey Island in Kollafjörður Bay near Reykjavík, Iceland. It consists of a tall tower of light, projected from a white stone monument that has the words "Imagine Peace" carved into it in 24 languages. These words, and the name of the tower, are a reference to Lennon's campaign for peace, and his song "Imagine".

The Tower consists of 15 searchlights with prisms that act as mirrors, reflecting the column of light vertically into the sky from a 10-metre wide wishing well. It often reaches cloudbase and indeed can be seen penetrating the cloud cover. On a clear night it appears to reach an altitude of at least 4000m. The power for the lights is provided by Iceland's unique geo-thermal energy grid. It uses approximately 75 kW of power.