West of the Bairro Alto sits the leafy district of Estrela, best known for its gardens and enormous basílica. To the south lies opulent Lapa, Lisbon’s diplomatic quarter, where sumptuous mansions and grand embassy buildings peer out majestically towards the Tejo; it’s also home to the superb Museu Nacional de Arte Antiga, Portugal’s national gallery. Down below, on the riverfront, the regenerated district of Santos is known as “the design district”, with some of the city’s coolest new shops and bars.