Ok, I've not seen them all and everyone has their favourites, but here's my selection:
1. Moonhouse. I'll never forget the first time I laid my eyes on it.
2. The Citadel. A beautiful ruin, but it's the location that makes it spectacular.
3. House on Fire. At its best in the golden hour.
That was a tough call, and I'll probably change my mind tomorrow!
What are your special ones?