Few things are more peaceful than sunsets and docks. Combine the two with a walk on a warm evening, and you’ll find a real moment of Zen. Yet, somehow, this beautiful photo by Flickr user (flicts) from Lisbon, Portugal reminds me of a still from a zombie movie, something like The Walking Dead stunt last fall. It’s quiet in this photo, perhaps a little too quiet. So enjoy the sunset, but don’t let your guard down if there are undead on the loose.