The sacristy at St. Andrews's Abbey, Valyermo, California. More at [Paths of Light]
The edge we mostly know is of course the shoreline, whether lake or sea. More images at [Panchromatica]in the photo albums.
My profuse apologies for not getting on the stick earlier with this. I've been obsessed with fighting off a bronchitis attack and very nearly had to deliver myself to the ER of my local hospital. I will be a few days behind in getting my contribution up, but please don't let that stop you. Let the subject suggest whatever it may to you. In the meantime, I will be resting and getting my strength up for a trip to Zion and Capitol Reef National Parks where I expect to find a lot of interesting perspectives through the gaps in slot canyons and vegetation lines. -- Joel