Iceland Airwaves is the most important music festival in Iceland and is held every year in early November at various music venues, record stores, art museums, bars and even in a church, all located in downtown Reykjavík.
In 1967 John Lennon asked Yoko Ono to create a piece tower for him in their backyard. She apparently never got to it back then, however 40 years later she did, just not in her backyard, but in Reykjavík Iceland.