The nearest metro station is at 1 mins walking (Baixa-Chiado) , as well as the famous electrico 28, that will take you inside the most ancient coins of Lisbon.
From the aeroport ; bus 44, 45, AEROBUS, stop rossio or pr. Do comercio
From bus station ' Sete rios' ; metro BAIXA exit: rua do crocifixo
Take the metro from internacional train station 'Santa Apolonia' to 'Baixa Chiado' look for Rua do crucifixo behind the famous Armazens do chiado 100m from the metro station
From bus station 'gare do oriente' metro BAIXA exit: rua do crocifixo, or bus 28 stop pr. Do comercio
From Train station ' santa apolonia ' bus 9,46,59, or 12 minutes on foot