Kastel is a term that can refer to various historical fortifications or castles found in different regions, particularly in Europe. These structures were often built for defense and served as residences for nobility. Many Kastels feature thick walls, towers, and moats, showcasing architectural styles from different periods. In addition to its historical significance, the term "Kastel" is also associated with specific locations, such as Kastel Stari and Kastel Novi in Croatia. These towns are known for their picturesque waterfronts and rich cultural heritage, attracting tourists interested in history and architecture.