On the highest point of Serralunga d’Alba, 15km south of Alba, the Castello di Serralunga d’Alba is the Langhe’s most absorbing castle, due to its intact but completely unrenovated, shell-like interior. Wandering around its echoing rooms, you’d swear you can hear the footsteps of the armoured sentry who once guarded it. The former fortress was built in the 11th century, but most of what you see today was reconstructed in the 14th century, including a then-state-of-the-art defence system (you can still see the remains of the drawbridge). If no one’s around during opening hours, knock on the castle-keeper’s door to be let in.