Circular window with concentric circles and spokes, seen from below and to one side.

Partway down the central escalator at the San Diego Convention center, you can look down the long cylindrical skylight that makes up the roof of the lobby, rings forming the appearance of concentric circles. Years ago, a friend of mine referred to it as the Death Star Cannon shot, and it’s a popular one to take, both during Comic Con and at other events.

Looking along a long, semi-open tube in a building, with the Comic-Con banner in the center.

At this year’s Comic-Con International, I found myself looking at the windows surrounding the stairs instead. My first thought was to mix things up with the classic cannon shot, but when I got home and looked at the results, I realized: This really does resemble the windows in the Emperor’s throne room. It’s still a Death Star shot, but a different part of the station!

If you’d like to see more photos or read more about my experience at the convention, check out I Survived Comic-Con 2013.

It's a cloudy day. Behind a white picket fence and green lawn, there's a whitewashed, gabled housel Most of it is two stories, but a square tower in the middle rises two more levels, and the tower is topped with a railing above which which you can just glimpse the top of a glass structure.

Point Fermin Lighthouse in San Pedro, California, at the southern tip of Los Angeles.

The Victorian lighthouse is surrounded by a city park, and the park is lined with a walkway along the top of the cliffs by the sea. Off to one end is the infamous sunken city, a suburban development that was abandoned when the land started sliding into the ocean. I took a whole slew of photos as I walked along the clifftop, and you can see the seven best on Flickr.

This is one of three lighthouses in the area that I considered driving to over the weekend for Instagram’s weekend hashtag project (theme: lighthouses), figuring it had the best chance of clear weather. No such luck. (Update: I have since been to Point Vicente many times, but I can’t remember what the third one was. Maybe the one in Long Beach by the aquarium?)

Strangely, the phone picture I chose for the project turned out to be more striking than the better shot taken with my camera. I was trying to keep the lamppost separate from the house, but it turned out I shouldn’t have.

I’m always surprised when that happens, even though it’s not that uncommon an occurrence.

The same house, but this time it's sepia-toned and fading darker toward the corners. It fills a a square frame with a border that makes it look like the holder in a really old photo album. And the angle is just different enough to make it look fuller, or bulging, or perhaps even looming above the viewer.

Photo Challenge (Instagram): Lighthouse