Old Manor house

From Witcher Wiki

The Old Manor house is not actually accessible during the game. Geralt only ever goes into the catacombs beneath it in his quest to hunt down and kill Azar Javed. The manse is situated on the highest point of the small island which has appropriated its name. It is surrounded by a once formidable, but now decaying palisade which overlooks the ruins of a village.

The views from the once grand estate must have been spectacular.