A few minutes from the historic center of Siena, nestled among cypresses, ancient olive trees, and the gentle hills of the Tuscan countryside, stands the majestic Castello delle Quattro Torra, one of the most fascinating historic residences in the region, now available for sale. The property, dating back to the 13th century, dominates a hill offering an unparalleled view of Siena, Val d'Orcia, and the harmonious surrounding Sienese landscape. Originally built as a defensive fortress, the castle was initially owned by the Cinughi family and later by the Bichi, who adorned it with furnishings of great value. Unfortunately, these were lost in 1555 during the siege of Siena when the fortress hosted Gian Giacomo Medici, Marquis of Marignano, commander of the imperial troops. Subsequently, the building was transformed into a noble country residence while maintaining its original grandeur. Recent studies suggest that this same castle was immortalized by Ambrogio Lorenzetti in the famous fresco of the Good Government, painted in 1339 in the Palazzo Pubblico of Siena. Over the centuries, the castle has welcomed illustrious guests such as Galileo Galilei and Luigi Pirandello, a testament to its historical and cultural importance. The structure spans approximately 1,290 sqm distributed over six levels, four of which are above ground, and is characterized by a square plan with four perfectly symmetrical corner towers. Inside, the castle is currently divided into various independent apartments, each featuring charming spaces and original architectural details like stone fireplaces, exposed beams, and terracotta floors. The property includes twelve bedrooms, numerous lounges, studies, kitchens, and service areas, offering ample possibilities for both private use and a prestigious hospitality business. The main entrance, marked by an elegant pointed arch, leads into an internal porticoed atrium. From here, a stone staircase leads to the upper floors, where the main rooms overlook the countryside and the city of Siena. The authentic and evocative historic cellars on the ground floor can be converted into spaces for receptions, tastings, cultural events, or wellness areas. A private garden with independent access is already set up to host private ceremonies. The estate includes about 16.5 hectares of land, harmoniously distributed between agricultural productions and green areas. Of these, 2.6 hectares are dedicated to an olive grove with about 400 producing trees, while 1.2 hectares are cultivated as a vineyard with the Chianti Colli Senesi DOCG designation, ensuring quality wine production. The remaining 12.5 hectares are arable land, with excellent potential for agricultural, organic, or agritourism development. Completing the property is also an annex of about 265 sqm, located near the castle, which can be transformed into additional living space, a guesthouse, a service structure, or a small independent hospitality center. Moreover, there is an ancient barn that can be converted and a brick building that could be used as staff housing or another residential unit. Currently, part of the structure is used as a family-run Bed & Breakfast, with rooms furnished in respect of Tuscan tradition, welcoming atmospheres, and breathtaking views. The strategic location, a few kilometers from the center of Siena yet immersed in the tranquility of the countryside, makes this property ideal both as a prestigious private residence and as an investment for a high-level tourist activity. The Castello delle Quattro Torra is a unique residence, a perfect balance of history, landscape, architecture, and entrepreneurial potential. A true gem in the heart of Tuscany. The Castle of the Four Towers enjoys an exceptionally strategic yet secluded position, located southeast of Siena's historic center, about 4 kilometers from the ancient city walls. The property is located in the locality of Pieve al Bozzone, along a country road immersed in greenery but conveniently connected to the main road network, ensuring quick and direct access both to the city and to the routes towards Chianti and Val d'Orcia. The location allows you to reach Siena in less than ten minutes by car, making the castle ideal even as a main residence for those who wish to live immersed in tranquility without giving up proximity to urban services. In the immediate vicinity, there are supermarkets, restaurants, international schools, and healthcare facilities, all accessible within a few minutes' drive. Heading north, in less than half an hour you reach the Chianti Classico area, with its renowned wineries, historic villages, and iconic landscapes. The location is also perfect for reaching the main tourist and cultural destinations of Tuscany in a short time: Monteriggioni, San Gimignano, Montalcino, and Pienza are all reachable in about 30-45 minutes, while Florence is about 70 kilometers away, easily accessible via the Florence-Siena superhighway. The castle is situated in a landscape of great environmental value, surrounded by agricultural land, olive groves, and vineyards, with wide panoramic views over the Sienese hills. Despite its impressive historical value and rural tranquility, the property is well-served and connected, a rare feature for properties of this kind. This combination of proximity to services, geographical centrality, and protected natural context makes the Castle of the Four Towers one of the most desirable and functional historic residences in Tuscany.