The Three Blue Domes in Santorini are iconic landmarks located in the village of Oia. Oia can get super busy and with everyone wanting to take a selfie at this location, it’s best to work around the peak crowd times. You will literally see line-ups. That being said, there is a reason people flock to this location, it’s stunning and provides an amazing view of Oia with the iconic churches, Agios Spiridonas (Saint Spyridon) and Anastaseos (Church of the Resurrection).