Museu Calouste Gulbenkian
Set in lovely gardens, this magnificent museum houses the treasures collected by Armenian oil magnate Calouste Gulbenkian. The main collection (undergoing refurbishment until July 2026) is split in two; one part is devoted to Egyptian, Greek, Roman, Islamic, and Asian art, and the other to European acquisitions. A walk through the gardens, where there's a café with a pleasant terrace, leads to the Modern Collection (open during refurbishment), where the 9,000 pieces from the 20th and 21st centuries include sculptures, paintings, and photographs. English-language notes are available throughout, and you should plan to spend at least two hours here.