Mars Cheese Castle

Mars Cheese Castle is a specialty food store, delicatessen, and taproom which sells a variety of consumable products in Kenosha, Wisconsin. Located along Interstate 94, the shop is popular among Wisconsin visitors and has been called a "cheese landmark", "one of Wisconsin's most recognizable cheese stores", and "an icon for generations of I-94 travelers". While the store is best known for its cheese, it also sells sausages and other foods, beer, wine, specialty condiments, soft drinks and Wisconsin souvenirs such as cheesehead hats.

The store is the oldest cheese shop located at what the Milwaukee Journal Sentinel called "Wisconsin's most visible cheese interchange"; the junction of Interstate 94 and Wisconsin Highway 142 had three cheese shops until 2009 when it was reduced to two.

The in-store deli offers burgers, bratwurst, and other sandwiches. A variety of draft and bottle beers are available in the taproom – including imported European beers and Wisconsin microbrews. There is also a bakery on site.