Those going to steemfest might be interested in my series on travelling in Portugal. It focuses on long-stays in the Algarve but there's a lot of general info about language, history, culture and so on. And you might be encouraged to visit some places outside Lisbon! The first post (of 15) is here:
https://steemit.com/travel/@brightongreg/portugal-1-winter-escape
Thank you @brightongreg we will check it out.