Don't be put off by the rather incongruous location for despite being situated in the northern suburbs and approached by concrete housing blocks, this utterly romantic 18th-century royal palace stands alone as one of the grandest and most sumptuous in the land. Actually, it's one of the finest examples of Rococo architecture in Portugal and the interior hides a treasure trove of exquisite furniture and period décor. A highlight is the opulent Sala dos Embaixadores, built by Robillion and which featuring a stunning trompe l'oeil ceiling. The palace gardens, embellished with trickling fountains and trim topiary, are laid out in formal symmetry and provide a relaxing and highly enjoyable extension to the tour.