Holy moly please make the icon for castles smaller and/or increase the alpha blending. Far too dominating of the real estate on the screen.

Oh yes, I see the UK has gained a load of castles.  On smaller displays, the icons are perhaps a bit big at some map scales, I'd agree. 

Especially as many of the "castles" shown aren't castles, and some are such small country houses that they aren't visible from the air.  In some cases it seems that an old farmhouse that happens to have the name XXX Hall, where XXX is the name of the village, now becomes a castle.  I think the quality of the "castles" database is a bit variable.