During the summer, many take the 225km (140 miles) journey northwest from Cairo to the Mediterranean port of Alexandria. Named after Alexander the Great, the attractive city is filled with Greek heritage and offers a relaxed European ambience. Its most famous sight is the world famous Bibliotheca Alexandria, a stunning piece of contemporary architecture, housing museums, planetarium and regular cultural events. The landmark Citadel of Qaitbai was built in 1479 allegedly on the site of, and from the stones of, the Lighthouse of Pharos, one of the Seven Wonders of the ancient world. Other noteworthy attractions include the marble Kom al-Dikka (Roman Amphitheatre) and delicate mosaics.