The Hiramatsu Hotels & Resorts Sengokuhara.

Set against the rolling hills of Hakone, this 20-room retreat functions as much like a private art gallery as a hotel. The property houses an extensive collection of works by masters including Picasso, Miró, and Chagall, creating an atmosphere of quiet, curated luxury. As the hotel is part of the Hiramatsu culinary group, the experience centers heavily on the restaurant, where modern Italian techniques meet Japanese ingredients. Each guest suite features floor-to-ceiling windows and a private, deep-soaking tub made of pink marble, fed by clear Shin-Ubako hot spring water. Details like Regalia mattresses, Bulgari amenities, and a complimentary minibar stocked with premium juices ground the stay in comfort, while the surrounding Sengokuhara landscape provides a moody, verdant backdrop.