The Parco Regionale dei Castelli Romani is a protected area located in the Lazio region of Italy, near the city of Rome. Established in 1984, the park covers approximately 15,000 hectares and is known for its beautiful landscapes, including volcanic lakes, hills, and charming villages. It is home to diverse flora and fauna, making it a popular destination for nature lovers and outdoor activities. The park features several historical sites, including the medieval towns of Frascati and Nemi, as well as the ancient ruins of Tusculum. Visitors can enjoy hiking, cycling, and birdwatching while exploring the rich cultural heritage and natural beauty of the region.