The Santa Justa elevator began service in 1902. The lift is decorated in a Neo-Gothic style in iron.
As I can attest, getting up and down Lisbon by foot is quite a hike. I enjoyed several walks in the city. If you have been to San Francisco, you have a datum of comparable magnitude. The elevator is 45 meters (148 feet). The lift brings people from the lower streets of the main Baixa and the higher Largo do Carmo (Carmo Square).
Below is a view from the Castelo de São Jorge.
In the end of the 19th and the start of the 20th century, iron structures were considered pretty whiz-bang. Each of the seven levels is uniquely decorated.
On the top floor is a kiosk and lookout, with panoramic views of the city, while connections to the floors below are made (in addition to the elevator) by two spiral staircases.