well, not all of them are castles as such, but castles is a better title than castles and some really big buildings that are not quite castles but are really big and impressive…
1 Amon Sûl, Lotro. I love this screenshot, it is really hard to get an overall shot but I found a spot on a ridge opposite.
2 Therinfall Redoubt, Dragon Age Inquisition. I used the DAI cinematic tools to get this shot, and it is really impressive and a shame it is instanced and only available if you choose to work with the templars.
3 Solitude, Skyrim. Ok not quite a castle but it is a fortified town and palace so close enough I think. Again I used a tool for a free camera.
4 Elden Root, ESO. Its probably the Bosmer equivalent of a castle. A huge, huge tree which has been shaped into an enormous living and to be lived in structure. The Bosmer King resides here so I guess that makes it a kind of castle?
5 Divinity’s Reach, GW2. This looks like something out of a fairy tale, gorgeous!