For the first time in over 50 years-and only the fourth time in more than 120 years-The Riddle House, an iconic piece of Fort Collins history, is now on the market. Listed on the Historic Registry and lovingly stewarded by just four families, this Victorian gem sits on a meticulously landscaped quarter-acre in the heart of Old Town.Inside, timeless craftsmanship and thoughtful updates blend seamlessly. Soaring 9-foot ceilings, sunlit 6-foot original windows, and stunning Texas Yellow Pine floors- known for durability and long board spans-set the tone for elegance. Original 9-inch base trim, preserved egg-and-dart door casings, and handcrafted woodwork reflect the home's 19th-century roots, while pocket doors and solid wood details speak to its enduring character.The galley-style kitchen is a practical chef's dream, featuring a Wolf 4-burner gas range, stainless Vent-a-Hood, slate backsplash, solid-surface countertops, and refinished ceiling-high cabinets. A cozy breakfast nook with custom wainscoting invites connection. The updated main-floor bath offers a vessel sink vanity and glass-enclosed shower. The sunroom, fully renovated and insulated in the 1980s, features fir flooring and a charming wood-burning stove for winter warmth. Upstairs, find spacious bedrooms with dormered ceilings, unique wallpaper themes, and garden views through large original windows. Under-eave closets offer both storage and architectural charm. Outdoor living shines with a screened-in summer house perfect for al fresco dining. The yard-cultivated over 50 years-features wisteria, grapes, herbs, fruit trees, and blooms planned for year-round color. A reflection pool, koi pond, and a patio built from salvaged Old Town sidewalk stones add beauty and legacy. This is more than a home-it's a lovingly preserved chapter of Fort Collins history, ready for its next steward.