No matter the number of days you're planning to stay in Lisbon, they will never be enough to discover everything the city and its neighboring towns have to offer. However, you can make the most of your time in Lisbon by going to some of the most iconic places - including the Torre de Belém, visiting Bairro Alto and the famous "pink street" at night.
You can also visit one of the most famously portrayed cities in the country's local literature: Sintra. Located on top of one of the 7 hills that surround the capital and where you'll find the multi-colored Palácio da Pena, you'll find the quaint little town of Sintra. If you're a fan of the James Bond movies, you can visit the original "Casino Royale" in Estoril where the original film was shot.