Being in Europe, we are spoiled by the amount of castles on every hilltop and town center. How lucky we can just have so many at our doorstep.  

Château d’Aigle and the Musée de la Vigne, du Vin et de l’Etiquette 
Place du Château 1 
1860 Aigle
024 466 21 30
website
Aigle Castle was built at the end of the 12th century and is situated in the middle of vineyards. It harbors a wine museum with old wine-making traditions and tools, as well as a terrific collection of wine labels. Note: It’s fun to go to Swiss Vapeur Parc (see below) in the morning through lunch (there is a mini Château d’Aigle there!), then drive over to the life-size Château d’Aigle in the afternoon. Price: Fr 11.-/adult, Fr. 5.-/age 9-16. Family and group packages available. Wine-tasting available with a souvenir wine glass starting at Fr. 25.-/person in addition to the entry price; prior reservation 10 days before and minimum of 10 people must be signed up. Open daily during summer 10h-18h.

http://www.knowitall.ch/local-news/travel/holidays/1640-summer-ideas-castles-galore-in-the-area-awaiting-your-visit