The castle map items themselves add more parts of the castle to the game map of which you can view by pressing select. If an outlined area on the map is blue then you have been there and it adds to your total map completion percentage but if it's black then you haven't yet been there.
Usually by pressing "select" which may also pause the game. Some Castlevania games don't have a map.
You need the ability soul, Rahab, gained by defeating the boss of that name. His location is the Subterranean Hell, and is actually quite missable since there's only one access point at a time when much of the castle is already open to you. But if you look at the map in the related link, you can guide yourself to his general area and boss chamber.
The spike breaker is located in the Catacombs. The Catacombs is located at the very bottom of the map.
Go on the map and on the back side theres a castle just click that castle and go in!
Click on the map and there is a picture of a castle next to the tink tree called castle gam.
its in the middle of the map and its a square
See the link below - Google Map directions.
Snow day is at the castle bridge. To get there USE THE WORLD MAP AND CLICK ON THE CASTLE!!!
Go on the map and on the back side theres a castle just click that castle and go in!
Edinburgh castle is at Castlehill at the top end of the Royal Mile (High St on map), use the postcode EH1 2NG to find it on GPS.
sunshire map
You cant see the tower on the map but it is in the castle.