"Mars Cheese Castle was founded in October 1947 by Mario Ventura Sr. and Martha Ventura in a renovated old school building in Kenosha County, Wisconsin. The name "Mars" comes from Mario's first name (Mario ≈ Mars) and Ventura's mother's Italian concept of a castle, so "Cheese Castle" also implies both "castle" and "cheese kingdom." Initially a small cheese shop, it expanded and relocated (the original shop was rebuilt after a fire in 1957). It wasn't until 2011, during the reconstruction along Interstate 94, that the current, more castle-like location was built. It has become an iconic roadside attraction and symbol of Wisconsin cheese culture.

💫 The atmosphere: The exterior resembles a small castle, and the large sign is easily visible from the highway. Upon entering, the aroma of cheese, bread, and sausage is breathtaking, instantly making you feel like you've arrived in "cheese lover's paradise."
🧀 Must-see Highlights:
• Over 700 cheese varieties! In every flavor and shape, you'll be constantly thinking, "I want to try that too!" "That looks so special!"
• Restaurant + Bar Area: Sit down with a Wisconsin beer and a Reuben sandwich or cheese bread – it feels like a little luxury during your trip.
• Gift Area: Perfect for giving family and friends some "only-in-Wisconsin" souvenirs.
📸 Photo Tip: The castle exterior + the cheese display area + the bar stools – this three-way combination is a must! Remember to choose a sunny day; the reflections off the cheese display windows are beautiful.
⚠️ Weekends can be crowded, so leaving early might be easier. While cheese lovers will love it, if your group isn't a cheese fan, you can order hot food or drinks from the restaurant so everyone can find something they like. Remember to bring cooler or freezer bags when buying cheese, especially if it's summer or a long drive."

sianna Liu

"A fun stop, but I wish they would have all of the local products labeled. Many of the things they have (like the jams and the jellies and crackers) are from other areas of the country. I’m from a town where we produce a lot of local products, and so the stores label them. Even the grocery stores! Because I really want to shop local. It’s Clear the beer was local, But I would’ve loved all of the local cheeses to have been labeled as such. And if they had other local products, just put a big sign up that says “local” because I really want to support local farmers etc.

All that said, this is a lot of fun (As you can see from the photos). They also had a pretty amazing wine selection, and they had some local beverages as well, and again, it would’ve been great if they had a big sign up that said “buy local!”

They had a mix-and-match for the local beer. Which I love! So we brought home a mixed six pack. We also brought home some of the cheese that they had offered for tasting, which seemed very local. And I love that they have the cheese to taste as well.

Restrooms were clean.
My husband had a Reuben and he said the pastrami was good, but they didn’t have it on the correct bread. A Reuben should be on rye bread. They had an alternative."

Lockie Hunter

"Mars Cheese Castle is a must-stop for anyone traveling through Wisconsin with even a passing interest in local flavor. The selection of Wisconsin-themed gifts is impressively broad—from fun, quirky souvenirs and t-shirts to authentic local goods that make for perfect take-home gifts or personal treats. The store is beautifully laid out and makes it easy to explore both the novelty and the genuinely artisanal.

What truly blew me away, though, were the cheese curls. I’m not claiming they’re the best in the world—I haven’t tried every cheese curl out there—but they are, without question, the best I’ve ever had. Perfectly crunchy, bold in flavor, and oddly addictive.

The staff here also deserves high marks. Friendly, efficient, and happy to share recommendations without being pushy, they added a sense of warmth to the experience that made the stop feel more like a visit to a local institution than a tourist trap. Highly recommended."

Tony Skeans