Memmo Alfama, LisbonMemmo Alfama in Lisbon, Portugal has a corrected score of 3.9 ± 0.2 (solid evidence, 3 of 4 platforms), ranked 39 of 162 hotels we score in Lisbon. Its platform ratings, normalised to 0-5, average 4.1 before correction: Booking.com 4.1, Tripadvisor 4.1, Google 4.0. Rooms from about $268 a night (cached, not a live quote).Memmo Alfama is a four-star boutique hotel in Lisbon's historic Alfama district, set in a refurbished late nineteenth-century building with minimalist contemporary interiors. It sits among the neighbourhood's narrow streets, within walking reach of Lisbon Cathedral and São Jorge Castle. Facilities include an outdoor pool, a rooftop terrace with views over the Tagus River, a restaurant, room service and a 24-hour reception. The hotel operates as an adults-only property, which keeps the atmosphere quiet and suits couples and other grown-up travellers looking for a calm base in the old town. Rooms are on the small side, which is worth considering if you want more space, and rates start from around $268 a night.What stands out

Comfortable, well-designed rooms

Rooftop terrace with river views

Quiet adults-only atmosphere

Walk to cathedral and castle

Watch out for

Rooms are fairly small

Occasional lapses in service

Better-scored in Lisbon

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Corpo Santo Lisbon Historical Hotel, Lisbon: 4.3 ± 0.2 (solid evidence, 3 of 4 platforms), from $496 a night. Corpo Santo Lisbon Historical Hotel is a five-star boutique establishment located in the Cais do Sodré district.

Locke de Santa Joana, Lisbon: 4.3 ± 0.2 (fair evidence, 3 of 4 platforms), from $245 a night. Locke de Santa Joana is a four-star hotel situated in central Lisbon within a converted 17th-century convent.