Cartagena is the second largest city in the region of Murcia. With its large port, the city has a significant role and the history of Cartagena goes back very far in time. There are several museums and ancient monuments that are well worth a visit. The mountains that surround Cartagena give a great impression, with castles and ruins that look out over the city and the Mediterranean Sea. Cartagena has many Roman remains and you can also visit the ruins of Spain's oldest cathedral. A stroll in downtown Cartagena creates contrasts between old and new - shopping, dining and big city life combined with historic squares, buildings, monuments and museums.