In semi-chronological order, not exactly sure though, they all run together.

NamePoints
Arundel - A duke lives here, even to this day1.0
 
Leeds - Someone lived here up until 1986 or so1.0
 
Rougemont - Forgotten.
Although we stood next to it, we also forgot we even saw it, therefore half a point
0.5
 
Stonehenge - Where the Druids dwell.
Not a castle, but nevertheless made of stone
0.1
 
Launceston - A very old and battered castle1.0
 
Tintagel - Supposedly where King Arthur might have possibly lived. Maybe.
Quarter point because we didn't get to go up to it (price and time).
0.25
 
Caerphilly - Favorite Castle, as evidenced by the number of pictures it got versus everywhere else.1.0
 
Harleck - Great castle, not sure of the name / spelling.
Took a survey for the tour agency of Wales.
1.0
 
Caernarfon - Joe's favorite.1.0
 
Conwy - Impressive looking castle, but we only stopped for the picture. 0.5
 
(K)Hadrian's Wall - Not a castle, but we stopped and crawled on it.0.25
 
Edinburgh - Scotland, crowded, too modern. 1.0
 
Urquhart - Scotland. Up near lochness.
Didn't get close because of outrageous price. Scotland hates student discounts.
0.1
 
Stirling - There was an impressive view of the castle from afar, because it stood on a rocky hill.
Somehow I managed to not take a picture of that, so you get a solitary wall.
1.0
 
York Wall - Not a castle, but was extensive.0.1
 
Warwick - A castle we didn't have time to see, could be good.0.25
 
TOTAL POINTS10.05