Quite possibly the largest - at least longest - building I've ever seen. (I walked through most of it, I thought, then realised half of it has been turned into a museum, and I hadn't been anywhere near it...)
To tell you the truth I got kind of lost in there, but somewhere inside was this monastery. Børge told me all about it and I should know, but I'm ashamed to admit I can't remember - still you can read up on the link I gave you...
The church was built on money from Brazilian gold, Vasco da Gama had paved the way (and is buried inside). The church is highly decorated inside and out, with oceanic motives as well as biblical and more "common" ornaments.
Incidentally, S. Jeronimo is patron saint of translators, did you know that? Which gives me the perfect opportunity to tell you about my new job; from June 1st I'm no longer a legal secretary, but back to my old trade as translator - I'll be working as editor-in-charge (is that a word?) for a dictionary company. I can work from home 4 days a week... The increased salary could pay for trips to Lisbon - with the entire family!