The castle looms over the old city and lake Annecy, it has a (overpriced) museum inside, but I chose to skip the museum as it was too expensive and you get great (free!) views of it anyway from the lake and from the steep alleyways which snake behind it to bring you back down to old Annecy.
It's a stunning castle with the turrets and gates showing the power and might of Annecy when it ruled over Italy and western Switzerland and its museum is great for families as children will love the suits of armour.
Chateau d'Annecy is only a 20 minute walk from the train station and is well signposted
Send your feedback or queries to firstname.lastname@example.org