Minnesota’s Forgotten Castles: 9 Hidden Gems Across the State
Minnesota’s architecture goes far beyond lakeside cabins and modern cities. Scattered across the state are castles—yes, castles—that blend history, intrigue, and stunning design. From Gothic Revival college buildings to historic mansions, these structures capture the imagination. Let’s explore these fascinating landmarks you won’t want to miss.
The College of Saint Scholastica Castle (Duluth, MN)
This Gothic Revival marvel, built in 1912, stands tall on the picturesque campus of the College of Saint Scholastica. Its imposing limestone walls and pointed arches give it an undeniable medieval charm. The castle isn’t just for show—it houses modern classrooms and provides a functional yet beautiful space for students.
The setting is so striking that it’s a go-to for local photographers. It’s worth a stop if you’re exploring Duluth’s rich history.
Turnblad Mansion (Minneapolis, MN)
Also known as the American Swedish Institute, this castle-like gem was built in 1908 by newspaper tycoon Swan Turnblad. Featuring 33 grand rooms, it’s filled with intricate woodwork and Scandinavian-inspired architecture. Today, the mansion doubles as a cultural hub, offering exhibits, events, and even Swedish cooking classes.
Pro Tip: Visit during the holidays when the mansion is adorned with traditional Scandinavian decorations.
Le Sueur County Courthouse and Jail (Le Center, MN)
Completed in 1896, this Romanesque Revival courthouse could pass for a medieval fortress. Its stone turrets and arched windows exude old-world elegance. While it’s still an active courthouse, history buffs will appreciate the preserved details of the adjoining jail, which looks like something out of a period drama.
If you’re in the area, the building’s unique design makes it well worth a visit.
Minnesota Museum of Mining (Chisholm, MN)
While not your traditional castle, this museum in Chisholm features a striking stone structure that resembles a small fortress. Built to honor Minnesota’s mining industry, it offers insight into the grit and determination of early miners. Outside, there’s a hands-on display of massive mining equipment, making it especially family-friendly.
Pro Tip: Kids will love exploring the outdoor machinery while adults enjoy the historic exhibits.
Holland Hall at St. Olaf College (Northfield, MN)
Holland Hall sits high above St. Olaf College’s campus, boasting stunning collegiate Gothic architecture. Built in 1925, its stone facade and tall windows evoke the feeling of stepping into another era. The breathtaking views from its hilltop location only add to its appeal.
Walking the halls, you might half-expect to see robed scholars from the Middle Ages.
Landmark Center (St. Paul, MN)
This Romanesque Revival structure, completed in 1902, is a true showstopper in downtown St. Paul. Once a federal courthouse and post office, it now serves as a cultural center hosting performances, exhibits, and local festivals. Its turrets, arched windows, and red-tiled roof give it a castle-like appearance that’s hard to miss.
Stop by for a dose of history and a packed calendar of events.
Old Main Castle at Macalester College (St. Paul, MN)
Dating back to 1887, Old Main is the architectural centerpiece of Macalester College. Its Gothic-inspired design, including a towering bell tower, gives it the nickname “The Castle.” Still in active use, it remains a hub for students and faculty—a true blend of form and function.
The surrounding campus offers a peaceful spot for a stroll or picnic on sunny days.
Van Dusen Mansion (Minneapolis, MN)
Built in 1883, the Van Dusen Mansion is one of Minneapolis’ most striking historic homes. With its turrets, stone walls, and fairy tale vibe, it truly feels castle-like. While it was originally a private residence, it now operates as an events venue, hosting everything from weddings to corporate gatherings.
Pro Tip: If you’re planning a special event, the mansion offers unmatched elegance with a touch of history.
Glensheen Mansion (Duluth, MN)
Arguably Minnesota’s most famous “castle,” Glensheen Mansion is a 39-room estate that sits beautifully on Lake Superior’s shores. Built in 1908 for the Congdon family, this mansion is filled with ornate furnishings and fascinating stories. The grounds, complete with gardens and lake views, are just as impressive as the interior.
Tours are available year-round, and the estate is enchanting no matter the season.
Conclusion
Minnesota’s castles each tell a story, blending architectural elegance, history, and cultural significance. From lakefront escapes to collegiate icons, these lesser-known landmarks offer something for everyone. Whether you’re here to explore Scandinavian traditions, enjoy a murder mystery dinner, or simply admire Gothic spires, these hidden gems are ready to inspire your next adventure. Which “castle” will you visit first?
