Porto, the second-largest city in Portugal, is a perfect blend of rich history, vibrant culture, and world-renowned wine. The city’s Ribeira district, a UNESCO World Heritage site, offers cobbled streets, colorful houses, and breathtaking views of the Douro River. Strolling through the district, you’ll come across São Bento Railway Station, which is known for its beautiful blue-and-white azulejos (decorative tiles) depicting historical scenes from Portugal. Another must-visit is Livraria Lello, one of the most beautiful bookstores in the world, famous for its grand staircase and intricate interior design.