Board a tuk-tuk, an open-air, four-wheeled electric vehicle, named for the sound it makes as it travels through the streets of ancient Lisbon. Led by your English-speaking driver, imagine yourself back in the Middle Ages as you thread through narrow and twisting alleys, stopping at a viewpoint in the Graça quarter for exceptional views of the city. Gaze out over the city and take in its remarkable sites, including the medieval Saint Georges Castle, the 25th of April Bridge and the Tagus River. Next, make your way to Rossio Square, in the heart of the downtown, where you'll see an array of beautiful churches, cozy cafes, and high-end shops and boutiques. Stop along the way to shoot that perfect photo and pause for refreshments, which can include port wine, or local products. Then travel to Sao Pedro de Alcantara Belvedere to admire more breathtaking views before returning to the ship.