The vampire lurking in a remote and ancient castle lair is a standard image in the horror genre, so here are the tools to recreate it (you don't even need to be playing Dungeons & Dragons to find a use for these plans!). Of course it may not be a vampire who lives here at all, maybe it's the family seat of an ancient bloodline whose history is entwined with that of the lands around, or it may have been abandoned or repurposed for another use entirely - a grand hotel with hidden secrets, perhaps - or maybe your own party has been gifted the place by a grateful monarch... but you have to make it your own! The possibilities are endless.
The introductory notes offer some ideas for why the party might pay a call here, as well as providing a legend for map symbols and instructions on using the customisation tools that switch fill, numbers, grid, and furniture on and off.
The first plan gives an overview of the entire castle, with a gatehouse and curtain wall around the central structure. Perched on a hilltop with a chasm between the main castle and the entranceway, unless you are good at climbing (or can fly) it is quite difficult to gain access.
The second plan presents the entrance in more detail. There are 2 small structures on the far side of the chasm, a drawbridge, then a small complex of chambers in the outer wall with a wide passageway leading further in. This page also depicts the 'overlook' - a balcony on the far side that looks out over the lands beyond. Relatively safe from attack, this is an open area with several rooms and a terrace.
We then move on to an exploration of the main structure, beginning with the basement or Level -1. Down here there's a veritable maze of very small rooms, probably cells, and a lot of statues. This is followed by a plan of Level 0, which has several large rooms, including a hall that contains a massive statue, and shows the base of several towers. Level 1 shows that the hall with the massive statue is two stories high and also includes what appears to be a throne room.
Next, Level 2 provides the roof to some areas (including the large hall which has a dome over it) and includes high walkways to the surrounding curtain wall, including two which extend to the 'overlook' spoken about earlier. Level 3, Level 4 and Level 5 are mainly rooftops apart from some towers that continue upwards, their top levels - open to the sky - appear on Level 6. Within the castle there are many rooms, most of which have been left empty and unadorned, you will be able to have fun deciding what is there.
This is a quite magnificent castle, worthy of some great ruler or historied family. It's wasted on a vampire... if one's there, it is time to throw him out and install a more worthy resident!