Landmark preservation is the practice of protecting and maintaining buildings, sites, and structures that hold historical, cultural, or architectural significance. This process often involves designating certain landmarks as protected sites, ensuring that they are not altered or demolished without careful consideration. Preservation efforts help to maintain the character and history of a community. Organizations and government agencies, such as the National Park Service in the United States, often oversee landmark preservation initiatives. These efforts can include restoration projects, educational programs, and community engagement to raise awareness about the importance of preserving heritage sites for future generations.