Stiftung Kartause Ittingen in Frauenfeld, Switzerland has a corrected score of 3.5 ± 0.2 (fair evidence, 2 of 4 platforms), ranked 2 of 5 hotels we score in Frauenfeld. Its platform ratings, normalised to 0-5, average 3.7 before correction: Booking.com 3.9, Tripadvisor 3.6. Rooms from about $262 a night (cached, not a live quote).
Stiftung Kartause Ittingen is a former monastery converted into a cultural and seminar centre in Warth. The property features 68 individually furnished rooms and is set within a rural landscape. Guests can access a museum, a labyrinth garden, a bowling alley, and an on-site winery. The Restaurant Mühle serves dishes sourced from the estate's own farm and dairy. With 22 seminar rooms and various event spaces, the site is well-suited for business retreats and organised groups. While the setting is quiet, the property is quite large and spread out across the former monastic grounds.
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