The capital of Campania is the third largest municipality in Italy. Naples is one of the oldest inhabited cities in the world - the impact of this can be seen on the city's architecture, which has a great mix of medevial castles, classical ruins, Renaissance inspired buildings and Baroque styled monuments. The historic city centre of Naples has the denomination of UNESCO World Heritage Site. The centre has over 440 historical monuments and churches - the highest in a single city in the world.