This church of Sacred Heart of Jesus is opposite nice park Jardim da Estrela, entry is free. Next to it was built convent for Barefoot Carmelites by the order of the Queen. You can go up to the roof but I had bad knee so we didn't. I loved the interior, especially ceiling and colour tone of the walls. The dome in the basilica allows light to come in this church is not so dark as the others.

I was in Lisbon with my partner and his sister along with her family August 2022. It was our 3rd stop off on our European cruise and we were doing a little bit of exploring and found this church. I’m not religious in the traditional sense but I do like to look at some places of worship as they’re usually architecturally nice to see. There was no fee to enter and it was nice to get out from the heat outside. There were a fair few people inside and it was nice to look around and light a candle if you wanted. A nice building to visit.

That's right. For years on end, I've gone past this well known landmarks to Lisbon inhabitants, but never went in. A bit of a mistake that I fortunately got to amend. You enter and, while not bearing the full presence of a cathedral, the building does not disappoint, showcasing its own personality in the form of multiple altars to local saints (including Lisbon's patron saint, St. Anthony) and colourful stonework, all with the normal quiet of such a building. If you're looking for some further experience, there are budget friendly tickets available to go atop the roof and even go into the building's dome (take care to not go on Sundays as the dome should be inaccessible due to Sunday mass). From here, you have a bit of a view of the surrounding neighborhood, while also being fairly close to the airport's South flight corridor. Just take care not to be up there when the full bell toll takes place (for example, Sunday at 11:50) as your ears will be at risk. To get there, consider taking the n28 tram as it finishes its course right outside the main entrance.