"Built behind the sand dunes that separate a beautiful park from the Atlantic Ocean, the 142-room Oitavos looks set to reboot the Lisboan Riviera. You’ll need to be a fan of contemporary design to be happy in this trident-shaped building a quarter mile inland, as its plate-glass walls are more Bauhaus than cozy. Still, the rooms are spacious and light, with sky-blue vinyl floors, white walls, and large balconies offering sea or golf course views. A wall-hung television faces a plump stone-gray canvas sofa in the standard double, and a perky modern oil painting and a navy-blue cotton throw on the large bed give the room some personality. A long white laminate desk separates the bedroom from the bathroom, where you’ll find a blocky sky-blue tub and a stall shower. Surrounded by beautifully landscaped grounds, The Oitavos also has an outdoor saltwater pool in season."