These photos are from Trollstigen (The Troll Ladder) & Trollveggen (The Troll Wall) in Norway.

Check out WordPress for more zigzag photos: http://dailypost.wordpress.com/dp_photo_challenge/zigzag/
Here’s part 2: https://cardinalguzman.wordpress.com/2014/08/02/trollstigen-trollveggen-part-2/