Certosa Di Pontignano in Siena, Italy has a corrected score of 3.8 ± 0.2 (fair evidence, 2 of 4 platforms), ranked 11 of 36 hotels we score in Siena. Its platform ratings, normalised to 0-5, average 4.0 before correction: Booking.com 4.2, Tripadvisor 3.9. Rooms from about $205 a night (cached, not a live quote).
Certosa Di Pontignano is a converted medieval monastery in Castelnuovo Berardenga, on a hillside a few kilometres from Siena. Once a religious house, it now operates as a congress centre for the University of Siena and welcomes overnight guests in rooms, suites and apartments. Facilities include a restaurant serving Italian food, a bar, a café, a rooftop terrace and event spaces used for weddings, conferences, concerts and dinners. Amenities cover air conditioning, Wi-Fi, parking, room service, minibars and kitchens in some units, and pets and children are welcome. Rates start around $205 a night. It suits travellers wanting a historic countryside base near Siena, though the working conference centre means business events can share the grounds with leisure guests.
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