You wanted a trip close to Lisbon, a relatively small town but a different world... amazing beaches, so come to Cascais, an amazing and beautiful city.

Mercado da Vila de Caiscais is a great market for fish, beer and what not, especially delicious food.

You wanted a well-organized museum with rooms decorated like in a Netflix show.

Another world, another reality. Worth a trip. https://bairrodosmuseus.cascais.pt/list/museu/museu-condes-de-castro-guimaraes?section=1

Especially for those who love books, literature and in general ancient things.