Patra, the vibrant capital of Achaia, is the largest city in the Peloponnese and the third largest in Greece, built amphitheatrically from the western slopes of Mount Panachaikos to the shores of the Gulf of Patra. Known worldwide as the "Queen of Carnival" but also as a dynamic student city, Patra uniquely combines a cosmopolitan youthful atmosphere with a great historical heritage. The city is characterized by an excellent street layout with large squares (such as George I Square and Olga Square), vertical pedestrian streets full of life and the emblematic stairs of Agios Nikolaos that connect the Lower and Upper Towns. Highlights and top attractions include the majestic Cathedral of St. Andrew (the largest in the Balkans), the medieval Castle of Patras, the Roman Odeon, the state-of-the-art Archaeological Museum, and the historic Achaia Clauss winery. With one of the most important ports in the Mediterranean and Greece's main gateway to the West and neighboring Italy, Patras is bustling with energy, offering countless options for entertainment, dining, and culture, while its developing waterfront and iconic Rio-Antirio Bridge make it a premier, modern destination.