Here's a short list of things that I like to see, and that I tend to take pictures of. No particular order or reasoning. Once I start uploading the pictures I've been taking (I will eventually, I promise...) you'll start seeing this stuff a lot.
1. Stone churches. Catholic churches are the best for this, but any old churches will do it. I especially like taking pictures of Catholic churches at night, or pictures of them in interesting lighting. I love stone crosses with moss or ivy on them. I love seeing crosses contrasted against the sky or lit up by the moon.
2. Graffiti. I think a huge part of the personality of a city is expressed in its graffiti.
3. Lanes and roads stretching into the distance. I love to go on walks in the city, wandering down streets just to see where they go. I love trees and architecture. I love doors, arches, and gates--portals to other places, full of untold stories. I do take pictures of lanes all the time, lanes I wish I could walk down, or lanes that really lead nowhere in particular. But the pictures can't quite catch the essence of what it is like to walk past a road or lane and wonder about where it would lead you.
4. Interesting textures and shapes.
5. Urban decay. Especially abandoned buildings, or decaying structures juxtaposed against brand-new ones or construction. Buildings being swallowed by ivy are also fun.
6. Trees and water. Horizons. General nature-y stuff--the kind that ends up on postcards. You know the drill.
I've already filled up a 2G memory card with pictures and need to sort thru them and post some. I went on a day tour to Wicklow today and ended up with another gig or so of pictures (altho lots are duplicates that will be whittled down). Saw three lakes, went on a forested walk, wandered around monastic ruins and a 500 y/o graveyard. I'm proud of myself for leaving Dublin for the first time since I got here! Even if it was only for one day, on a silly tour that barely lasted as long as it should've. Next weekend I'm going to Galway :3