The Santa Justa Lift was built in 1902 and is one of the oldest elevators in Europe. It's a great way to explore Lisbon as it takes you up to Carmo Square, where you can enjoy stunning views of the city. From there, you can visit other attractions such as the National Pantheon or explore some of Lisbon's narrow streets.
Visiting this elevator is one of the best things to do while in Lisbon and should not be missed by anyone visiting this beautiful city!
I paid around €5.30 directly to the operator on entry to the lift (without a Lisbon Card) that included an ascent, descent and up to the terrace reached by a staircase after embarking (turn immediately left on exiting the lift). If you're using a Lisbon card, the card only covers you for the ascent and descent, and the terrace is a further €1.50 paid on entry to the barrier.
Here's the view looking at the Justa Lift from the side of the Convent