23 Cities That Are Surprisingly Great for Solo Travelers

21. Porto, Portugal: Riverside Charm and Port Wine

While Lisbon often grabs the spotlight, Portugal's second city, Porto, offers a uniquely captivating experience for solo travelers. Wander the colourful, labyrinthine streets of the Ribeira district, sample namesake Port wine in Vila Nova de Gaia's cellars, and admire the intricate azulejo tilework adorning churches and stations. The unexpected delight is the dramatic view walking across the upper level of the Dom Luís I Bridge, connecting the two sides of the Douro River. Porto feels intimate yet vibrant, perfect for soaking up authentic Portuguese culture.